Which parts do you need help in? I've done all my ATPL papers as well and am only left with GEN NAV for my CAA UK ATPLs. Am in Malaysia though. Let me see where I can help you, but I too am looking for help on this subject!
I guess i'm pretty okay with most of everything except the Polar Stereographic bits and the INS positioning bits.
Back to the books for me!
Keep me posted if you get any links online etc - Peace.
JFK