how do i access the composite cables on my desktop HELP!?

I think thats what they are called… (the tripple yellow white red cables) and i have a gateway LX (just got it) about 2 months ago here is a link to the page http://www.gateway.com/systems/product/5…
and here is a link to the rgb ports i was talking about http://gadget-t.com/wordpress/wp-content… its in the middle of the picture next to the headphone slot =) any help would be appreciated… apps or whatever
sorry… here is a fixed link… http://www.gateway.com/systems/product/529668232.php

Pages Not Found

How to install wordpress as a CMS (Part 1)