It looks like we need some kind of math support for formulas :-)
Matt?
Jens, since it is Xmas...
I've installed a mod called mimetex which takes LaTeX and produces a gif image. It works like this:
[ img]/cgi-bin/mimetex.cgi?f(x)=\int_{-\infty}^xe^{-t^2}dt [/ img]
which without the tag spaces gives:
(http://sgf.rgo.ac.uk/cgi-bin/mimetex.cgi?f(x)=\int_{-\infty}^xe^{-t^2}dt)
Please test it out using the post preview. See here http://www.forkosh.com/mimetex.html (http://www.forkosh.com/mimetex.html)
Matt