[firewire212]

Near the beginning of this thread, there is an installer source listed. The installer uses a list of sources to find the apps you want to install. Click sources on the right, then edit, then add. Type in the installer source (it looks like a typical URL) and then ok. Now it will refresh. Now when you press install, there will be iphyiscs to choose, and a listing of all the levelpacks people have submitted. Just click (or press it and then press install. When you exit installer there should be an icon for iphysics on your iphone. Play away!