Traveller 2300 World Generation

Has anyone tried out this system?  It seems very detailed, perhaps
overly so.  In a few test runs, I didn't manage to roll up a single
habitable planet.  Has anyone figured out the chances of a system
(say, G0 V) having a habitable world?
Deficiency - I can't find any provision for asteroid belts.
I'm working on a C program to do the system generation.  If there is
interest, I'll send it out.

Jason May
[email removed]