Rating-system.com widget

I just found a free widget or software program called Rating-system.com. It looked like a perfect way for me to customize a product rating system with multiple rating fields while allowing customer comments. I copied the code from the site and placed it in my WordPress 2.5.1 site, but it doesn’t work. I contacted the site’s technical support staff and they said that WP changes their code after I save the page. Has anyone else tried to use this on WP, and if so, did you find a fix so the tables showed up on your page? I hate to pay them $300. to customize the code to my site. Thanks.