Navision/ Commerce Portal setup

Hi All, We have just started implementing Navison system. I am customizing the commerce portal and having a great difficulty becuase I haven’t been able to obain any documentation on this topic. Would anyone please point me any good documentation and resources/ references. I am also having problems getting my website changes to show up on the website. AFter making changes in Navision, I select the “relaod page properties” and get a response, but changes are not reflected on the website. My message queues are empty and there is nothing pending. I have rebooted both servers but no luck. We are using NAS ver 3.10.A. Thanks in Advance. Jamal