Finish Drupal/Ubercart Multi Seller Site

A Freelancer has installed Drupal 6/Ubercart on my domain Hyecentral.com. Project was not completed and I need someone to finish off some of the component configurations and design elements. The site is for people and stores who wish to sell items online (products with an Armenian theme and nature). Buyers may purchase products; Sellers may sell products and are charged a fee to list a product and then a commission fee at sale. Listing is good for 30 days then Seller must relist item with a new listing fee. All transactions are done through Paypal. I attempted to update some of the modules and the site is display some module related errors that will need to be done. I am attaching two files representing some of the work to be done. Mainly I want to verify the revenue collecting business model. Developer will need to know how to set up the following for the Site Admin. - Sellers pay a fee to list an item for sale. The amounts for these listings are tracked in the system. once a month the site admin will generate invoices and charge Sellers for listing fees through their paypal account and credit to Site Paypal account. In addition, when an item sells, the Site collects a commission from the seller for the transaction. This is calculated by Paypal and credited to the Site admin paypal account. Commission amounts are not ever visible to the Buyer through the buying process. i will have more details regarding requirements for the winning bidder but for now this represents the scope of the project. I estimate it is roughly 10-15 hours develpment time once you receive requirements. Samples attached.