If you have GM 8.0 or 7 download this after you download the zip, then simply replace part 3 with this:
If you run into Extreme Physics errors you probably didn't install the extension yet. This is very simple and can be fixed by clicking here. http://files.maarten...physics-2-1.zip
Then just open your project, go to Resources, Extensions, Install, Install and then install the extension. Before you click OK make sure it is on the left hand side of the screen. Then click OK. If you still have an error make sure you did it right then send me a PM.
Edited by ean, 08 December 2011 - 04:59 PM.