PixelatedPanda

Hello Everyone, I've got an issue that I just can't seem to track down. I've installed QTPro 2.3.1 into osCommerce Online Merchant v2.3.3.4 as per http://addons.oscommerce.com/info/7786 using instructions contained. The problem is that when I click on catalog > products attributes I just get a blank screen with no error messages or warnings. I've restored the products_attributes.php from the install file and replaced it, re-edited again as per the instructions just in case I'd done something wrong and the same is happening again. I don't know if this is relevant but when I paste the code from Step 11.3 into dreamweaver, it says there are a lot of syntax errors. Anyone any ideas please? Thanks