I have just uploaded some game screenshots at

Doom 3

http://gallery.bizhat.com/showgallery.php/cat/675

Half-Life 2

http://gallery.bizhat.com/showgallery.php/cat/676

HL2 Lost Coast

http://gallery.bizhat.com/showgallery.php/cat/677

QUAKE 4

http://gallery.bizhat.com/showgallery.php/cat/678

You can login to Gallery with same password and user name of the forum.

After loging in, you will be able to upload your own Game Screenshots.