Need dynamic automated sitemap for amazon site

I have a couple of small websites built with associateomatic. I would like to add sitemaps to them. Requirements: Your solution must be fully automated and self managed. I don't have time to devote to making sure the sitemap is current. Your solution must not spider my websites. The format should be based on the google/[login to view URL] spec. I would prefer that the sitemap gather information from the associateomatic category and subcategory database info and query the amazon api every two or three days (remaining cached for all other requests). If it cannot gather all site URLs from a single query, a weekly cron or scheduled task to compile the URLs would suffice. Additionally, it should be scalable. Using htaccess/mod_rewrite, the sitemap should be able to identify when it needs more than one page and manage itself to provide itself as such. For example: [login to view URL] primary page under all circumstances optional [login to view URL] where the integer is passed to the script when two sitemaps are needed optional [login to view URL] where the integer is passed to the script when three sitemaps are needed ..and so on as needed. PLEASE READ THE ABOVE DETAILED DESCRIPTION CAREFULLY BEFORE BIDDING. Please alert me to any questions you may have.