Custom CMS URI's?

[eluser]Steve Goodwin[/eluser]
Hi All,

Forgive me if this has been answered before, I have seen a few forums posts relating to this, but none have answered the question simply.

I'm new to CI and am looking to move to this framework for all of my work, I currently have my own custom CMS and the URI's are all checked via a database and the relevant template & content returned and served up to the user.

From what I can see I cannot currently see how I would create the url:

www.example.com/about-us/company/team/

If I have a database of URI's which are always being added to and some permanent functionality such as a shop checkout, how would I get CI to route URI's through a database table instead of the MVC pattern it uses out of the box.

I've also tried to see how pyro CMS does this, but not knowing enough about CI or Pyro was meaning I couldn't find a simple answer.

Thanks in advance

Steve