[Dylanblitz]

On Line 100
Change

PHP Code:

                AND username = '" . $vbulletin->db->escape_string(htmlspecialchars_uni($username)) . "' 


to

PHP Code:

                AND email = '" . $vbulletin->db->escape_string(htmlspecialchars_uni($username)) . "' 


On Line 105

Change

PHP Code:

            if ($user = $vbulletin->db->query_first("SELECT userid, username, email, languageid FROM " . TABLE_PREFIX . "user WHERE username = '" . $vbulletin->db->escape_string($username) . "' AND usergroupid <> 3")) 


to

PHP Code:

            if ($user = $vbulletin->db->query_first("SELECT userid, username, email, languageid FROM " . TABLE_PREFIX . "user WHERE email = '" . $vbulletin->db->escape_string($username) . "' AND usergroupid <> 3")) 


On Line 140

Change

PHP Code:

    if ($vbulletin->userinfo = $vbulletin->db->query_first("SELECT userid, usergroupid, membergroupids, infractiongroupids, username, password, salt FROM " . TABLE_PREFIX . "user WHERE username = '" . $vbulletin->db->escape_string(htmlspecialchars_uni($username)) . "'")) 


to

PHP Code:

    if ($vbulletin->userinfo = $vbulletin->db->query_first("SELECT userid, usergroupid, membergroupids, infractiongroupids, username, password, salt FROM " . TABLE_PREFIX . "user WHERE email = '" . $vbulletin->db->escape_string(htmlspecialchars_uni($username)) . "'")) 


I did that and was able to login with my email instead of username. Didn't really test it a lot so don't know if it has any other ramifications with the script in other areas.