I understand you have successfully installed joomla 2.5 on SME 8?
I've been using 1.5 on SME 7 for years, and now I have to upgrade. I've run into several problems with installing contribs, updates, etc. It all appears to be related to a permissions issue. Do you recall similar issues? I realize this is an older post, but just thought I'd run it by you, desparate for a eureka of some sort.
Thanks,
Jim