Try this and see if it gives us any more information:
Code:
sudo mount -v -t cifs //192.168.0.4/My\040Pictures /mnt/winxp_pictures -o credentials=/etc/samba/.smbcredentials,rw,nounix,iocharset=utf8,file_mode=0777,dir_mode=0777
I'm headed to Korea for a 3 day long business trip. I'll try to check in on my way to the ferry port tomorrow morning, but don't count on anything until Friday.