If you\'re talking about the file transfer app then I\'m afraid it quite simply won\'t work unless you use a 3.xx Sharp ROM (or tkc ROM perhaps?) with the latest usb drivers and software. The point is that the ROM isn\'t designed for the 5000D (though there were attempts to get it working - try search).
There are other (nicer than the nasty Sharp application imho) methods of file transfer using either your current ROM or one of the others - sftp/scp, ftp, samba, etc.
With your current ROM there is an ftp server running on port 4242 for example.
You can get them from the link I gave above, or I think they are included in the sync applications which Greg2 pointed to in the second of his links.