Without seeing your store it would be hard to give any feedback. How long has it been since you submitted the sitemap?
Google makes the call on what items to index or not. You can have 100 items in your sitemap and Google could choose to ignore them all. That's not a likely scenerio but important to know.
★ I jump on these forums in my free time to help and share some insights. Not looking to be hired, and not looking for work. http://freakdesign.com.au ★