Definitely get reason and a controller kboard. Full stop.
That program is psycho
As for the rebirth problem...
I dont even use the Tr 909 and junkin I just use the tb-303's, its the best part of the program. Just persist and be EXTREMELY experimental. A shit shit shit melody can sound awesome if you can work the filters just right. My opinion anyway.
What do you wanna do with it anyway, what kind of stuff are you making? If its not gonna fit in your style then the programs useless to you.

Hope I was some help.