The job is basically to get the SEO sitemap mod we have installed on our osCommerce site working to the point where the search engines (google and yahoo at least) are spidering our product and category pages. We require the solution to dynamically include any future products we add to the store (which the SEO sitemap mod does) and so no hard coded sitemaps thanks!
The current state of the mod is that it appears to work perfectly when browsed by a human (ie links are all there with the .js redirect disabled) however SE's seem to stop at the front page.
We will consider the job a full success when SE's can spider a product inserted after coding is complete. We'll consider the quality of the work done based mostly on turnaround time (we need this rather quickly... our PR is dropping by the day :( ) and also obvious things like good communication, clean coding etc.
Bidders able to give URL's of sites they've worked on using osCommerce that have their product pages indexed will be highly preferred.