1 - But I've looked in the Xith.org download section and a june 27 build doesn't seem to be there ? Is that the right place ?
You should use CVS. Typically William Dennis maintains community builds, so I believe the community build will appear very soon.
Is there an place/book where I can be up-to-date on all this kind of info GL issues and compatibility across drivers/graphic cards configs ?
Would be really happy to have this as well... but as for now, testing, testing, testing and once more testing.