DC2NET Links

I have a problem with my website: www.fwshop.sk

PR of the page si 4, site it quiet good in google SERP for some keywords (1-3 place)

So my problem is in the number of indexed page in google. When i check it (site:www.fwshop.sk or site:fwshop.sk), there are just 3 indexed pages. The other similar shops have from 1000-5000 indexed sites.

I am using google webmaster tool, and i also registered sitemap… i am desperate and i dont know what to do more.

Do you know what could help me??

Thanks in advance,
Marek

PS: sorry for my english