Dear Alain.
I think we should update the actual content based on the actual Trac default wiki syntax, or if there is another way to make it ...
This is nearly impossible if you do not want to reorganize all of the content. I am going to try to set up some parts in HTML (at least tables and image includes)
Guys ... would be possible to install some kind of photoblog under centos domain ? Something that let us upload a big image and generates thumbs of it for us to use ... something like http://www.pixelpost.org/. That way we could handle images/screenshots there and just refer them on Trac, Moin, wherever site ... That would be all about CentOS officially online images ... maybe contributors help with a section of personal screenshots ... a section for the artwork project (of course :D) ... and as many section as community consider helpful ... just a way to handle images and its sizes.
I do not think this is really necessary. Previews could be handled within the wiki. At least with HTML you could define the image size.
Some times attachments list on Trac could be quiet large ... and could look a bit ugly, for me at least.
Maybe we could hide the attachment list or add an 'view attachments' button to the bottom of the page.
Best Regards Marcus