i figured out the problem. i was changing volume in both the channel automation and main automation. very bad.
and REF, if i'm thinking about what you're trying to do correctly, all that you have to do is open the playlist by hitting F5, or clicking the shiny PL button to the right of the CPU monitor. there you can sequence your patterns in the order you want. give them meaningful names so you don't get confused (especially critical for 50+ pattern people like me ). also, you can move patterns up or down by holding alt and then pressing either up or down.
to make it into an mp3/wav file, just go to File-Export, then take your pick
and what's all this talk about the default instruments being crappy? i've made some pretty nifty things with 'em, though i have had to make my own samples or borrow 'em from game files on occaision. the only thing i'm lacking are some good, realistic string, choir, timpani, harp, etc samples. classical instruments and whatnot