Ok, but there is no warranty here

It works for me so make sure you back up first.
In vbplaza.php around line 116 -
FIND this code:
PHP Code:
// verify that the user has the latest version XML file imported
if ($vbulletin->options['vbbuxplaza_version_number'] != VBPLAZA_SCRIPT_VERSION)
{
display error, store currently closed
eval(standard_error(fetch_error('vbplaza_product_mismatch_with_php', $vbphrase['vbbux_name'], $vbphrase['vbplaza_name'])));
}
REPLACE with:
PHP Code:
// verify that the user has the latest version XML file imported
// if ($vbulletin->options['vbbuxplaza_version_number'] != VBPLAZA_SCRIPT_VERSION)
//{
// display error, store currently closed
// eval(standard_error(fetch_error('vbplaza_product_mismatch_with_php', $vbphrase['vbbux_name'], $vbphrase['vbplaza_name'])));
//}
Then it will work,
-Jason