[CentOS] install via http

Mon Nov 26 14:21:50 UTC 2007
Hiep Nguyen <hiep at ee.ucr.edu>

hi there, i try to install centos 5 via http, but i don't know what to put 
in when it asks for "Web site name" & "CentOS directory".  can someone 
give me this info?  can i used mirror.centos.org & /centos/5/os/i386/???

i only have the boot cd & i don't want to download and burn all 6 cds.

thanks