Update!
http://iphysics.r4m0n.net/index.php?...Latest_Updates
Sorry for the delay people, but finally the fix for 1.1.3/1.1.4 is here.
I'm also moving the levelpack directory to ~/Media/iPhysics, and the update tries to move everything there, but as there were many fixes to the problem around, I probably can't get everything right for everyone... So, if you get any "Main Script Execution Failed" in Installer.app, please drop me a note with all the details you can about the fixes you used, and your current directory structure of the levelpacks. Also, you probably can get everything working by uninstalling and reinstalling iPhysics and the levelpacks.