Game Manager Problem

[verbatib]

After getting a new computer complete with vista, I installed all the DoWs before downloading the mods I had played on on my old computer. However after following the installation instructions perfectly, the only mod which works is dawn of steel as it has its own installer. None of the others like ork swarm and movie marines show up in the game manager.

Can anyone help me? thanks, Josh

EDIT-after more playing, ive discovered that the game will raqndomly crash - any ideas?