Oscommerce - Modify Checkout Payment (One page Checkout)

I need someone with good experience with Oscommerce, PHP and MySQL. Please don’t bid if you are not experienced in all of these areas. You will be working on a live store which is highly customised (Oscommerce V2.2 RC2) The purpose of this project is to replace existing multi page checkout process with one (1) page checkout and to add new payment modules to our website. We have some contrıbutions on these section which another programmer made. The payment section, should be changed and designed. There is 3 difference payment method, including 5 difference bank transfers accounts (1 modul) Cash on delivery (self made) and a credit card payment section. Highlight the payment method (for example: the bar of “Credit Card ----- the radio button”) in the Payment Method area on the [login to view URL] page. When mouse rollovers this bar, the color changes. Before you bid, i will ask you to check the payment section. This should be quite an easy task for any experienced programmer. If you are good, I do get work quite regularly. These areas must be filled in by customer for continuing the check-out. The text in these five areas will be appended to order and included in order page. They will be included in the email sent to store owner, but not in the order notification email to customer. Please be advised that the site is customized as of now so no simple installation of contribution is possible. Terms & Conditions: • Payment will be given in full once project is completed and fully tested • Winning bidder agrees to provide 30 days technical support for the modifications made in this project • Winning bidder agrees to provide detail change records. İf you have any question regarding the project let me know.