reguarding mod_rewrite

about 5 months ago I noticed an article on this site, but can no longer find it about using mod_rewrite to make urls such as instead of:

becoming:

if anyone knows either how to do this or where I can find a tutorial on how to that'd be extremely appreciated.

Hey,

This topic or question is not regarding php or coding in php but infact an apache module. But as knowone has replied to this check out this:

or for 2.0