How to easily port ICS or JB to devices?

Ok...
I'm a mac. I've tried using the AOSP guide and using the correct commands... The terminal prompt is here.

Anyone? I'm on 10.8.2, have 10.5, 10.7, 10.8 SDK(s) installed... I'm porting to a MID7012, which should do it.

Any help?

Also, when I get the help, I'll make a guide for compiling on mac.