Firefox 2.0.0.14, 
url: http://www.yahoo.com/ 
the image that was dragged: http://l.yimg.com/a/i/ww/beta/y3.gif

Client logs:

Status:	Resolving IP-Address for localhost
Trace:	ControlSocket.cpp(1057): CRealControlSocket::ContinueConnect(0p13ed238) m_pEngine=0p13b9480   caller=0p13f2738
Status:	Connecting to 127.0.0.1:21...
Status:	Connection established, waiting for welcome message...
Trace:	CFtpControlSocket::OnReceive()
Response:	220-FileZilla Server version 0.9.24 beta
Response:	220-written by Tim Kosse (Tim.Kosse@gmx.de)
Response:	220 Please visit http://sourceforge.net/projects/filezilla/
Trace:	CFtpControlSocket::SendNextCommand()
Command:	USER SYSTEM
Trace:	CFtpControlSocket::OnReceive()
Response:	331 Password required for system
Trace:	CFtpControlSocket::SendNextCommand()
Command:	PASS ******
Trace:	CFtpControlSocket::OnReceive()
Response:	230 Logged on
Status:	Connected
Trace:	CFtpControlSocket::ResetOperation(0)
Trace:	CControlSocket::ResetOperation(0)
Trace:	CFtpControlSocket::FileTransfer()
Status:	Starting upload of C:\TEMP\y3.gif
Trace:	CFtpControlSocket::SendNextCommand()
Trace:	CFtpControlSocket::ChangeDirSend()
Command:	CWD /a/
Trace:	CFtpControlSocket::OnReceive()
Response:	250 CWD successful. "/a" is current directory.
Trace:	CFtpControlSocket::SendNextCommand()
Trace:	CFtpControlSocket::ChangeDirSend()
Command:	PWD
Trace:	CFtpControlSocket::OnReceive()
Response:	257 "/a" is current directory.
Trace:	CFtpControlSocket::ResetOperation(0)
Trace:	CControlSocket::ResetOperation(0)
Trace:	CFtpControlSocket::ParseSubcommandResult(0)
Trace:	FileTransferSubcommandResult()
Trace:	CFtpControlSocket::SendNextCommand()
Trace:	FileTransferSend()
Trace:	CFtpControlSocket::SendNextCommand()
Trace:	CFtpControlSocket::TransferSend()
Trace:	  state = 1
Command:	TYPE I
Trace:	CFtpControlSocket::OnReceive()
Response:	200 Type set to I
Trace:	CFtpControlSocket::TransferParseResponse()
Trace:	  code = 2
Trace:	  state = 1
Trace:	CFtpControlSocket::SendNextCommand()
Trace:	CFtpControlSocket::TransferSend()
Trace:	  state = 2
Command:	PASV
Trace:	CFtpControlSocket::OnReceive()
Response:	227 Entering Passive Mode (127,0,0,1,6,24)
Trace:	CFtpControlSocket::TransferParseResponse()
Trace:	  code = 2
Trace:	  state = 2
Trace:	CFtpControlSocket::SendNextCommand()
Trace:	CFtpControlSocket::TransferSend()
Trace:	  state = 4
Command:	STOR y3.gif
Trace:	CTransferSocket::OnConnect
Trace:	CTransferSocket::TransferEnd(1)
Trace:	CFtpControlSocket::OnReceive()
Response:	150 Connection accepted
Trace:	CFtpControlSocket::TransferParseResponse()
Trace:	  code = 1
Trace:	  state = 4
Trace:	CFtpControlSocket::SendNextCommand()
Trace:	CFtpControlSocket::TransferSend()
Trace:	  state = 5
Trace:	CFtpControlSocket::TransferEnd()
Trace:	CFtpControlSocket::OnReceive()
Response:	226 Transfer OK
Trace:	CFtpControlSocket::TransferParseResponse()
Trace:	  code = 2
Trace:	  state = 7
Trace:	CFtpControlSocket::ResetOperation(0)
Trace:	CControlSocket::ResetOperation(0)
Trace:	CFtpControlSocket::ParseSubcommandResult(0)
Trace:	FileTransferSubcommandResult()
Trace:	CFtpControlSocket::ResetOperation(0)
Trace:	CControlSocket::ResetOperation(0)
Status:	File transfer successful
Trace:	CFtpControlSocket::FileTransfer()
Status:	Starting upload of C:\TEMP\y3-1.gif
Trace:	CFtpControlSocket::ParseSubcommandResult(0)
Trace:	FileTransferSubcommandResult()
Trace:	CFtpControlSocket::SendNextCommand()
Trace:	FileTransferSend()
Trace:	CFtpControlSocket::SendNextCommand()
Trace:	CFtpControlSocket::TransferSend()
Trace:	  state = 2
Command:	PASV
Trace:	CFtpControlSocket::OnReceive()
Response:	227 Entering Passive Mode (127,0,0,1,6,26)
Trace:	CFtpControlSocket::TransferParseResponse()
Trace:	  code = 2
Trace:	  state = 2
Trace:	CFtpControlSocket::SendNextCommand()
Trace:	CFtpControlSocket::TransferSend()
Trace:	  state = 4
Command:	STOR y3-1.gif
Trace:	CTransferSocket::OnConnect
Trace:	CTransferSocket::TransferEnd(1)
Trace:	CFtpControlSocket::OnReceive()
Response:	150 Connection accepted
Trace:	CFtpControlSocket::TransferParseResponse()
Trace:	  code = 1
Trace:	  state = 4
Trace:	CFtpControlSocket::SendNextCommand()
Trace:	CFtpControlSocket::TransferSend()
Trace:	  state = 5
Trace:	CFtpControlSocket::TransferEnd()
Trace:	CFtpControlSocket::OnReceive()
Response:	226 Transfer OK
Trace:	CFtpControlSocket::TransferParseResponse()
Trace:	  code = 2
Trace:	  state = 7
Trace:	CFtpControlSocket::ResetOperation(0)
Trace:	CControlSocket::ResetOperation(0)
Trace:	CFtpControlSocket::ParseSubcommandResult(0)
Trace:	FileTransferSubcommandResult()
Trace:	CFtpControlSocket::ResetOperation(0)
Trace:	CControlSocket::ResetOperation(0)
Status:	File transfer successful
Status:	Retrieving directory listing...
Trace:	CFtpControlSocket::ParseSubcommandResult(0)
Trace:	CFtpControlSocket::ListSubcommandResult()
Trace:	  state = 1
Trace:	CFtpControlSocket::SendNextCommand()
Trace:	CFtpControlSocket::TransferSend()
Trace:	  state = 2
Command:	PASV
Trace:	CFtpControlSocket::OnReceive()
Response:	227 Entering Passive Mode (127,0,0,1,6,28)
Trace:	CFtpControlSocket::TransferParseResponse()
Trace:	  code = 2
Trace:	  state = 2
Trace:	CFtpControlSocket::SendNextCommand()
Trace:	CFtpControlSocket::TransferSend()
Trace:	  state = 4
Command:	LIST
Trace:	CTransferSocket::OnConnect
Trace:	CTransferSocket::OnReceive(), m_transferMode=0
Listing:	-rw-r--r-- 1 ftp ftp              0 Jun 10 09:38 y3-1.gif
Listing:	-rw-r--r-- 1 ftp ftp           1874 Jun 10 09:38 y3.gif
Trace:	CTransferSocket::OnClose
Trace:	CTransferSocket::TransferEnd(1)
Trace:	CFtpControlSocket::OnReceive()
Response:	150 Connection accepted
Trace:	CFtpControlSocket::TransferParseResponse()
Trace:	  code = 1
Trace:	  state = 4
Trace:	CFtpControlSocket::SendNextCommand()
Trace:	CFtpControlSocket::TransferSend()
Trace:	  state = 5
Response:	226 Transfer OK
Trace:	CFtpControlSocket::TransferParseResponse()
Trace:	  code = 2
Trace:	  state = 5
Trace:	CFtpControlSocket::SendNextCommand()
Trace:	CFtpControlSocket::TransferSend()
Trace:	  state = 8
Trace:	CFtpControlSocket::TransferEnd()
Trace:	CFtpControlSocket::ResetOperation(0)
Trace:	CControlSocket::ResetOperation(0)
Trace:	CFtpControlSocket::ParseSubcommandResult(0)
Trace:	CFtpControlSocket::ListSubcommandResult()
Trace:	  state = 2
Trace:	CFtpControlSocket::ResetOperation(0)
Trace:	CControlSocket::ResetOperation(0)
Status:	Directory listing successful


Server logs:
(000010) 10.6.2008 9:37:59 - (not logged in) (127.0.0.1)> Connected, sending welcome message...
(000010) 10.6.2008 9:37:59 - (not logged in) (127.0.0.1)> 220-FileZilla Server version 0.9.24 beta
(000010) 10.6.2008 9:37:59 - (not logged in) (127.0.0.1)> 220-written by Tim Kosse (Tim.Kosse@gmx.de)
(000010) 10.6.2008 9:37:59 - (not logged in) (127.0.0.1)> 220 Please visit http://sourceforge.net/projects/filezilla/
(000010) 10.6.2008 9:37:59 - (not logged in) (127.0.0.1)> USER SYSTEM
(000010) 10.6.2008 9:37:59 - (not logged in) (127.0.0.1)> 331 Password required for system
(000010) 10.6.2008 9:37:59 - (not logged in) (127.0.0.1)> PASS ******
(000010) 10.6.2008 9:37:59 - system (127.0.0.1)> 230 Logged on
(000010) 10.6.2008 9:37:59 - system (127.0.0.1)> CWD /a/
(000010) 10.6.2008 9:37:59 - system (127.0.0.1)> 250 CWD successful. "/a" is current directory.
(000010) 10.6.2008 9:37:59 - system (127.0.0.1)> PWD
(000010) 10.6.2008 9:37:59 - system (127.0.0.1)> 257 "/a" is current directory.
(000010) 10.6.2008 9:37:59 - system (127.0.0.1)> TYPE I
(000010) 10.6.2008 9:37:59 - system (127.0.0.1)> 200 Type set to I
(000010) 10.6.2008 9:37:59 - system (127.0.0.1)> PASV
(000010) 10.6.2008 9:37:59 - system (127.0.0.1)> 227 Entering Passive Mode (127,0,0,1,6,24)
(000010) 10.6.2008 9:37:59 - system (127.0.0.1)> STOR y3.gif
(000010) 10.6.2008 9:37:59 - system (127.0.0.1)> 150 Connection accepted
(000010) 10.6.2008 9:37:59 - system (127.0.0.1)> 226 Transfer OK
(000010) 10.6.2008 9:38:02 - system (127.0.0.1)> PASV
(000010) 10.6.2008 9:38:02 - system (127.0.0.1)> 227 Entering Passive Mode (127,0,0,1,6,26)
(000010) 10.6.2008 9:38:02 - system (127.0.0.1)> STOR y3-1.gif
(000010) 10.6.2008 9:38:02 - system (127.0.0.1)> 150 Connection accepted
(000010) 10.6.2008 9:38:02 - system (127.0.0.1)> 226 Transfer OK
(000009) 10.6.2008 9:38:10 - system (127.0.0.1)> PASV
(000009) 10.6.2008 9:38:10 - system (127.0.0.1)> 227 Entering Passive Mode (127,0,0,1,6,28)
(000009) 10.6.2008 9:38:10 - system (127.0.0.1)> LIST
(000009) 10.6.2008 9:38:10 - system (127.0.0.1)> 150 Connection accepted
(000009) 10.6.2008 9:38:10 - system (127.0.0.1)> 226 Transfer OK
(000010) 10.6.2008 9:38:32 - system (127.0.0.1)> disconnected.
(000009) 10.6.2008 9:39:11 - system (127.0.0.1)> 421 No-transfer-time exceeded. Closing control connection.
(000009) 10.6.2008 9:39:11 - system (127.0.0.1)> disconnected.