Under "gear and accessories" read the "favorite saddles" thread and you'll get an idea of how complicated the whole saddle business is.

They really can't fit you for a saddle, but your saddle might not be in the right place and sometimes a really minor change like tilting the seat up or down 1/2"
makes all the difference in the world. If it's actually your sit bones that are hurting rather than some other more delicate parts, you are heading in the right direction. I ride a leather brooks saddle; probably in some people's opinion, overkill, but the thing that make me want to stop riding is never my butt.
(it could be that i 'm tired or hungry or sometimes because my hands hurt)