You might want to clean up your review script a bit before asking people to purchase it. If you go to the admin login panel, where the password is supposed to get typed in - the graphic block is not sitting where it should, only way I found where to type the pass was to use the tab button from the user block.

A lot of the images you've placed into your demo aren't present.
There are a lot of errors in language/english, especially in the area where you fill in the rankings. I'd have those corrected as well.

There's no image at all showing in your POTD script, which makes one wonder why they'd pay $$ for something the seller doesn't have working in his own demo page.