Get Help
One of the nice things about SourceForge are the hosted applications it provides to enable:-
to be made in a systematic and traceable way using a tracker tool.
Sourceforge also provides an overview of the support available for the UML and SysML profiles for TRAK project.
In addition there are discussion forums for posting and responding to topics raised
There is a wiki on the trak project site on Sourceforge.
Joining In
The ways in which you could help - if you've the inclination to are covered on the Open Source page. You don't need to be a brainiac or a large organisation to help make a difference!
If you have an idea or suggestion see if others have something similar and want to get together.