i tried upgrading centos 3.4... and when i got the new kernal in and ran yum update there were some dependency issues. trying to resolve those issues caused me to uninstall rpm and yum. i was able to get rpm reinstalled but not yum. so i need someone very centos savvy to fix the rpm and yum situation and finish the centos 4 upgrade. pm if you are interested, can do it, and include how much you can do it for (i can pay with paypal).