Tweaking of OSCommerce based site with custom coding elements

I don't know specifically how to describe this project, it's a set of small related issues that need to be fixed on a web site I've taken over for a client. The site runs on OSCommerce with some custom mods made to the site that involve the templates in OSC. If someone has a good amount of experience with OSC and also with PHP and MySQL, I am interested in hearing from you. There are also some cross platform Javascript issues that need to be addressed. I am setting this bid low, but we can negotiate bonuses if the work exceeds the amount of time initially estimated to get this site fixed up. ## Deliverables 1) Complete and fully-functional working program(s) in executable form as well as complete source code of all work done. 2) Deliverables must be in ready-to-run condition, as follows (depending on the nature of the deliverables): a) For web sites or other server-side deliverables intended to only ever exist in one place in the Buyer's environment--Deliverables must be installed by the Seller in ready-to-run condition in the Buyer's environment. b) For all others including desktop software or software the buyer intends to distribute: A software installation package that will install the software in ready-to-run condition on the platform(s) specified in this bid request. 3) All deliverables will be considered "work made for hire" under U.S. Copyright law. Buyer will receive exclusive and complete copyrights to all work purchased. (No GPL, GNU, 3rd party components, etc. unless all copyright ramifications are explained AND AGREED TO by the buyer on the site per the coder's Seller Legal Agreement). ## Platform Linux, OSCommerce, PHP, MySQL, Javascript