Wayne, I do not know if this is of any help or not.. but here goes.
http://www.xoops.org/modules/newbb/viewtopic.php?topic_id=18176&forum=14&post_id=100624I`ve just sucessfully set up XOOPS 2.0.6 on PHP5. But I had to make some modifications.
First of all, I had to change name of 'clone' methody of XoopsObject in kernel/object.php, because this name is reserved in new PHP. Then it turned out that PHP get_class() function is now case-sensitive, so I wrapped all calls with strtolower(). My patch is here: http://ares.4lo.bytom.pl/pavcio/downl ... isc/xoops-2.0.6-php5.diff
But that`s not all. After patching the XOOPS source I realized that PHP crashes (!) sometimes when Smarty is outputting some templates (?). I tried to debug it but after several hours I left it. I`ve replaced old Smarty bundled with XOOPS with new version - 2.6.2. Now everything works fine and it`s much faster!