Gil, there is a really simple thing I'd suggest you do, since it sounds like you've turned a wrench. The top belt cover on the front of the engine is easily removed with just 6 small bolts. If you take it off, it will give you a look at the belts and the front of the engine.
And, you'll want to get electronic copies of the parts list for not only the 968, but 944s (I've found a couple of things on my car that were not listed in the 968 parts manual, but were in the 944 S2 manual). And you'll also want to get electronic copies of the repair manuals for the 968 and the 944s. The way Porsche wrote the 968, they only added those things that were not already covered in the 944 manual. So, you'll want all of these.
Edit: Yeah, following Tama's note below. I didn't mean to take the visual as an OK for the belts. You MUST do them now. If you take the cover off, since it is so easy, you'll get a peak at anything else that might show up like bad seals, etc.
