OsCommerce/CRE loaded6.1a/Modifying

Hi, I need to modify a simple webstore based on CRE loaded 6.1a. Please see my feeble attempt: [login to view URL] The store should initially utilize only these features: Shopping Cart: login, create account/register, donate button (etc.) Products: (Managed through Easy Populate) Categories: T-Shirts/ (each size /color/ has unique SKU#) Bags/ Buttons/ Downloadable: Gift Certificates, Tickets, Mp3 files. Shipping Module: a) downloadable products (no shipping charges) b) other products /itemized/ T-Shirts [US and Canada - first item ($5) each additional ($2)] [International Orders – first item ($10.50) each additional 3.50] c) insurance / yes/ no / ($1.50) Payment Module: PayPal_Shopping_Cart_IPN. The redesign of the web store should be clean and simple. I like very much the simplicity of these stores (see examples, disregard banners): [login to view URL] [login to view URL] [login to view URL] Thanks VanTuch