In general, just look at other poeple's FTMs, listen to the individual channels, take a look at the instruments and how they're used and try to learn how to make chiptune work
About the Famicompo Pico: Yeah, the last one was in december of 2014 and I believe it'll happen again - at least I hope so ^^
So yeah, summary: Learn from others, learn with others, and it'll be fine ^^ (as long as you give credit to your sources

)
I wish you best of luck for future projects and happy tracking ^^