[DragonByte Tech]

The error I'll answer here since it could happen with both lite and pro and because I love anything zombie.
Open dbtech/vbquiz/actions/userresults.php

About line 218 you'll find

        $quiz_query = $vbulletin->db->query_read("
            SELECT 
                q.*, 
                u.username, 
                t.taken_id, 
                t.completed, 
                t.completed_date, 
                t.final_result_text 
            FROM " . TABLE_PREFIX . "dbtech_vbquiz_quiz q 
            LEFT JOIN " . TABLE_PREFIX . "user u ON q.userid = u.userid 
            LEFT JOIN " . TABLE_PREFIX . "dbtech_vbquiz_taken t ON q.quiz_id = t.quiz_id 
            WHERE 
                t.userid = " . intval($u) . "
            ORDER BY 
                " . $query_vars . " 
            LIMIT 
                " . ($limitlower - 1) . ", " . $perpage
        );

replace with

        $quiz_query = $vbulletin->db->query_read("
            SELECT 
                q.*, 
                u.username, 
                t.taken_id, 
                t.completed, 
                t.completed_date, 
                t.final_result_text , 
                (t. final_score/t.possible_score) as percent_score 
            FROM " . TABLE_PREFIX . "dbtech_vbquiz_quiz q 
            LEFT JOIN " . TABLE_PREFIX . "user u ON q.userid = u.userid 
            LEFT JOIN " . TABLE_PREFIX . "dbtech_vbquiz_taken t ON q.quiz_id = t.quiz_id 
            WHERE 
                t.userid = " . intval($u) . "
            ORDER BY 
                " . $query_vars . " 
            LIMIT 
                " . ($limitlower - 1) . ", " . $perpage
        );

For the other problem, can you create a thread on the DBT site? It could involve things not available in the lite version and saves on confusion. Thanks.

Dylan