Add products to oscommerce website

I have a site with 200 products on and I use Seperate Pricing Per Customer with two groups (Retail + Trade) I need the Trade prices from my existing site adding to my new site. It should be quite a quick job as I also use Quick Updates tool in admin. You will be provided with the Trade login details for the old / new site. When adding the new trade prices I need you to pay careful attention to making sure that you also add the correct attribute prices - alot of these differ from the Retail attributes prices (You will see what I mean when you view the two sites next to each other) I need this doing quite quickly, however it should only take 3 or 4 hours. Payment is strictly by Paypal upon completion of the work. Thanks, Pete