You mean the belt looks fine and not broken and all is intact? Then I would say that is not the reason your engine died. What happens when you try to start it? The engine should run even if there's no belt. Of course you can't run it for long as the alternator isn't charging the battery when there's no belt and of course there's no a/c or power steering.
I just replaced my belt and it's rather easy to do, all you need is a 3/8 inch breaker bar and push down on the tensioner and you can slip the old belt on and stick in the new one. A little tricky putting in the new one, I'd route the back items first, then the tensioner, then the ac and leave the top one off, then push in the tensioner and slip that on last. Got the belt for about $15 at Autozone. Took about a half hour or so to do. I suppose you could find some local mechanic and tell him to throw on a belt, pretty basic.
A friend of mine said that Jiffy Lube charged him $70 to change the belt on his truck, they said it was a $40 belt. Our belt lists for $28 from Ford and fordpartsonline.com sells it for $22.43.
