Xcode 4.2 on 10.6.6 - need help with pacifist

[sOwL]

I am an enrolled Apple Dev and i have downloaded Xcode 4.2 for SL. When I try to install it tells me it needs 10.6.7. For other reasons, I'm currently stuck with 10.6.6, and have done some research and it seems that it doesn't really need the upgrade. So I fired up pacifist and installed it, all went well and I managed to run the program (I had to edit the .plist file to get arround version check). I did get a crash, but I think I know why. My current problem now is, how can i get to change the "default location" on pacifist so it doesn't install on "/" but rather on "/Developer"? I think that would fix the crash problem.. This is really bugging me, does anyone know anything?