Convert Oscommerce 2.2 template to Oscommerce 2.2 rc2a

I have a Oscommerce 2.2 template which needs to be converted to Oscommerce 2.2 rc2a. Please bid if you have experience in doing this before and have experience in implementing Oscommerce in a live store environment. I might require further help in installing and debugging but that will be a separate project. Include a list of the Oscommerce stores installed by you if possible and the estimated time you will take.