Need my themes fixed

My themes on my website are not working on [login to view URL] signup and check the themes, it just shows a blank page script owner says this will fix it: You can simply go to your old database quickfre_STSBuilder and export these tables: tbl_page, tbla_pages, tbla_news, tbla_news_categories, tbla_news_news_categories. Open your new database quickfre_STSBuilder_new, empty these tables and import the exported data. Remember to backup your database before empty the table. here is the original script im using. please know what your doing and read first. Ill pay $20 for quick fix