Ok I got it working to where it will randomly select one person to be a cat, but they still have all the mouse triggers and non of the cat triggers. I was wondering If I could somehow give triggers to a player or change like player 1's triggers to player 8's triggers.

No.
You'll have to set a death counter 'is cat' to 1 for the player that will be cat.
Then in all mouse triggers add a condition "has suffered at most 0 deaths of 'is cat'"
and in all cat triggers add "has suffered at least 1 deaths of 'is cat'"

A easier way would be to just Check the "Random Start Location" on your Forces...
So when the people go in there.. they're a random player...
and you can set p7 n p8 to be cat

The only bad thing is.. if you don't have a full house.. you may Not get a cat :S..

There're no shortcuts to the triggering... so you gotta do mouse n cat triggers for all players.. However, when you're doing the triggers, you can check all player 1, player 2, player 3, etc... and in your triggers you use "Current Player" rather than let's say "Player 1/2/3" etc...

As nuderaider said.. you gotta set a condition for being cat/mouse... using deathcounts are best =)

you can use death counts for the conditions, or u can use the bring command. if you dont understand death counts use the bring condition

He really should just learn to use death counters. Ever since I learned how I've been so much better off.