ok, more debugs:
big problem about urls and paths... on a clean install, there is no modification forcing to add complete paths for images and javascripts, even if you added some in this install...
you will need something like in vBadvanced... ya know, this:
PHP Code:
$navreplace['find'] = array(
'"clientscript',
'\'misc.php',
'>$vboptions[bbtitle]',
'"$vboptions[forumhome].php'
);
$navreplace['replace'] = array(
'"' . $vboptions['bburl'] . '/clientscript',
'\'' . $vboptions['bburl'] . '/misc.php',
'>$vboptions[hometitle]',
'"$vboptions[homeurl]'
);
$navreplace = construct_replacement_array($navreplacearray, $navreplace);
$templatecache['navbar'] = str_replace($navreplace['find'], $navreplace['replace'], $templatecache['navbar']);
...