actually, i've my n1 with JB 4.2.2 (cyanogenmod 10.1.2) but it's really buggy, slow and i can't install more than 3 apps :( so i like to downgrade it again to GB 2.3.6 (cyanogenmod 7.2).
But i've no idea, what i've to do ....
install fastboot for hboot (blackrose) and how to resize the internal...