Update May 15th 2007:Ok the beta of the new version is out. There is still a good ammount of stuffs to fix but I don't really have to time for now so I thought it would might be a good idea to release a beta.
If you want more detail about the current version you can go at this topic GMC Topic
http://forums.gamemaker.nl/index.php?showtopic=233765
I also made a video by the way showing a gameplay demonstration. You can take a look before downloading if you want.
http://www.youtube.com/watch?v=LyB2V6WSvig