Need SEO work done on a Oscommerce Website

I run a video game store that uses Oscommerce as its shopping cart. I've had several Oscommerce contributions installed such as SEO URL's, Meta Tag Controllers. My site also has a unique look from having the STS Template contribution installed so that may complicate things. I need an experienced SEO person that has at least 5 years experience doing SEO work and also doing SEO work on Oscommerce with these contributions installed.