adding games

i recently put vbulletin to my website we were using nuke evolution and i have a large game pack for the arcade that came with it i want to put that into the new system but really dont have a clue what to do uploading them to the games folder obviously don't work and i don't see no where to add games other than zip and tar files if i compress them all into a tar or zip file will it install them that way ?

also we are interested in purchasing some more games that are not so cheesy like some real nice shockwave games to add to it were can we find this ?