[NTG-context] Is there a mathematica typesetting manual for ConTeXt ?

hi all, I am a newbie of ConTeXt, i'm sorry if my question is foolish. I have two questions: 1. Is there a mathematica typesetting manual for ConTeXt ? There seems no ConTeXt manual focused on mathematica. Or I just need to find a mathematica manual for LaTeX ? 2. I'm running TeTeX 2.0.2 on Debian Sarge, and the version of texexec is 3.1 which I think is out of date, so i tried to update ConTeXt. I downloaded www.pragma-ade.com/context/latest/cont-tmf.zip , and unziped it to /usr/local/share/texmf/, then I ran "mktexlsr" and "texexec --make --all". But when i ran "texexec --version", the version was still 3.1. It seemed that the texexec wasn't updated. Thanks in advance!!