which 6.5 rom are you using? I have been using adrynalyne's 6.5 roms since about built 3.7.x and live has worked fine. In the current 3.9 build it has been upgraded to bing, and again works fine. I just go to the gps settings and set it to com 8 and no prob.

I will say this though... you need to have a clear shot at the sky and it will take a couple minutes for live to get its first gps fix. Other than that it should be easy going.