hmmm ... lets see ...
assuming the grounds are all daisey chained together ... sounds to me like the grounding wire isn't connected to ground. (means none of the controls will work) I'm also assuming the WWF Wrestlefest board is in 100% working condition too and there isn't a problem with the acutal board.)
Your getting a picture right ... and its just a control issue.
Lets see .... you'll need a aux harness for player 3 (Crime Fighters was a 3 player (2 button) game where as Wrestlefest is a 4 player (2 button) game)
You should really snag a manual off eBay for that board (setup, pinouts, dip switch setting, etc) ... shouldn't cost no more than a few dollars

Hope that helps you out