need oscommerce expert!

Need someone to "fix" established e-commerce store. Download ssl certificate and put in shopping cart and paste html info from ssl certificate into site. Very simple for someone familiar with oscommerce. Also need to check out problem with shipping and payment module both are simple problems but due to the fact that someone else installed this oscommerce template/admin panel that I am not familiar with and has not provided any instructions to fix these problems I need someone who is very familiar with every aspect of oscommerce and knows exactly what to do. The oscommerce admin panel has many plugins that were added by the installer. Please do not bid on this project if you have no feedback/references. Only trustworthy, recommendable and reliable apply!