how do I change the CMS section \ categories urls to be friedlier?

[Yellow Slider]

What I basically want is this -

the main forum will be at www.site.com/index.php.
the CMS page will be separated into section, lets say -


www.site.com/howto - #1 section
www.site.com/media - #2 section
www.site.com/guides - #3 section
www.site.com/support - #4 section
www.site.com/web -#5 section


you got the idea, the articles under each section will be

www.site.com/howto/<category name>/this-is-an-article
www.site.com/support/windows7/how-to-upgrade-to-windows-7


this is what I want to do.
we don't need to content.php part in the url.. it's much more professional like I asked.

and please don't just tell me "ModRewrite"

Thanks!