I got it working by doing this:
Code:
$version = $db->query_first("
SELECT versionname
FROM mytable_pt_projectversion
WHERE projectid = 2 AND projectversiongroupid = 1 AND displayorder = 10;
");
vB_Template::preRegister('footer',array('version' => $version['versionname']));
I'd made one mistake, that is adding 'versioname' in ' and then versionname was spelt with one n...
Now just to select the right row...
PS, thanks for the help