ACID PRO Question:

There should be a selection under File (I think) that says Render As (or something to that effect) and you can make it into an MP3 or whatever.

Fruityloops:

It is pretty hard to explain how to make a good beat on Fruityloops, I find the best method is to fuck around with everything and see what works. There are numerous forums dedicated to shit like this, find one of those. Also, check out the premade beats, and try to model after those.