How do you find the value of a Taurus 38 special 5 shot stainless steel revolver aproximatly 15 years old in exellent condition?

You can use an auction or classifieds website like Gun Broker, Auction Arms, Guns America, et. al to look at what prices are being asked for comparable models being sold, or you can simply take it to a gun shop and have them give a quick appraisal. If you go with the latter option, avoid pawn shops and visit a few different gun shops.