project for netsolve or ajax expert

A service provider from here developed an ajax shopping cart and info box for my oscommerce store. The info box and shopping cart can both update each other using ajax, for example if you add a product to the cart, you can remove it from the infobox and it will also be removed from the shopping cart at the same time with ajax. I have a new one page checkout now which also uses ajax, but its from a different developer so the code will be different. I need someone to make the new one page checkout work with the ajax shopping cart info box so that when a product is removed from the infobox, it is also removed from the one page checkout. The developer of the one page checkout has given me the code to make the one page checkout update the info box, so I only need to info box to update the one page checkout now. This is a small easy project for someone, I will award the project to the service provider who can complete the project is the least time with the smallest budget.