Reality Factory

Hi everone
I am new to Reality Factory, and this is my first problem. I know that there is the basic physics in Reality: Gravity and you can't go through walls. But i need some other physics. But i don't know where to download them or how to add them to Reality Factory.
I want the physics to be like in the videos:

http://www.youtube.com/watch?v=chARlTWv ... ure=relmfu
http://www.youtube.com/watch?v=paRvSV2xNAI

I'm not the best with a pc , but I like the idea about making my own game, so if anyone could make a "step by step" tutorial, I would be wery grateful.
If anyone could please help me, I would be very happy

thanks

RF does not do full physics but a couple of years ago federico released a community version of RF with Newton physics.
See this topic: viewtopic.php?f=9&t=3111&p=23861&hilit=newton#p23861

You can Download it here: http://sourceforge.net/projects/rf-ngd/

Thanks.
Maybe this is a stupid question, but how do I make it work? I've tried, but the items, for example a barrel, still act like before. I don't understand how to make it work
Sorry...I really need some help.
I would be very grateful if I could get some help