Dear Alain.
Okay, I managed to upload and include images. Now I need to know it's possible to add col/rowspan to tables?
Styling Trac wiki pages seems to be nearly impossible. Trac wiki syntax has a number of deficiencies which cannot be solved easily. Eg. it simply does not support row/colspan on tables. The only way is to use plain HTML syntax like:
{{{ #!html <h1 style="text-align: right; color: blue">HTML Sucks</h1> }}}
which cannot be combined with the wiki syntax of course. This means we either cannot use the trac wiki or we have to hack most parts in HTML. This also means if you want to include attachments you have to use HTML style, too.
Best Regards Marcus