CMS page URLs in Magento

I am trying to figure out Magento's routing because I need it for mod_rewrite. I have made several CMS pages in Magento itself; now I am wondering how to pass on $_GET variables.

For example:

http://www.magento.nl/catpage?catid=3

How should this URL look the Mage开发者_运维百科nto way? I tried:

http://www.magento.nl/cms/catpage/index/index/catid/3

Unfortunately this isn't working. Could someone help me out here, it's the missing link I am looking for. :-)

Thanks in advance.

You shouldn't need to change mod_rewrite or understand the router/controller/action process yourself. Magento already has rewriting abilities and CMS pages have an "url-key" which is used to make the public URL value. You have finer control via the "Catalog > URL Rewrite Management" too.