See this link:
http
/www.samsunggalaxysforum.com/samsung-galaxy-s-how-to/how-to-recover-files-%28eg-photos%29-deleted-using-samsung-kies-%28contents-manager%29/
Especially the one to connect the Samsung to a PC and recover files as if a USB drive (with Recuva).
Get Recuva at: www.piriform.com/recuva