Download the netinstall .iso CD file for your platform, burn a image then install it.
Edit: Welcome to LQ,
I didn't see that this was your first post, as for your question. You don't need to use the DVD .iso image file, the cd .iso netinstall works just fine, (unless you don't have fast internet that is.)
Last edited by mrrangerman; 10-11-2008 at 11:16 AM.