Um, I think we're missing his real problem - the fluid he says was all over everything. On my 4.0 YJ in front I have the possibility of coolant, power steering or engine oil leaking on the belts; I'm sure the 2.5 is the same, with the added possibility of a/c freon (mine's a/c delete). What color was the fluid? If it was red, you're probably right it was PS fluid (most can use either PS fluid or interchange with Dexron III auto transmission fluid). Green would be coolant (had a loose hose clamp on my rad when I bought my YJ, put a nice stripe on the inside of the hood). Engine oil is, of course, brownish-black depending on your maintenance schedule.
Go to the parts store and buy a few cans of brake cleaner and hose everything off that's even slightly wet. It won't hurt anything, but try not to get it on the finished paint on the exterior just to be safe (there's chlorinated and non-chlorinated and one will etch paint, but I can never remember which). It evaporates completely leaving nice, clean, dry parts behind and will remove whatever the fluid is. Go on a 10 mile test drive (on dry roads) and come home. Check for fluid leaks again - you should be able to pinpoint it then. And make sure to tension all the belts properly when you're done