Need few changes made to the oscommerce project we were working on last.
setup a way to mark some items in back of the page to show up on main page.
all products with sale_price field blank uses a percentage to populate the price on the fly. so in db backend add a field to define the percentage and it uses that number to calcluate the price.
change the way products are displayed when a category is clicked or search results. a summary of fields show up first about 6 fields in a catalog fashion and then once products is clicked then all details are displayed and add to cart button.
Simple job... i will send you a text file with more detais.