I am a WBEL 4.0 convert. I found instructions on the CentOS website how to convert from WBEL 3.0 to CentOS 3.0 here, http://centos.org/modules/smartfaq/faq.php?faqid=19
I just substituted locations for the 4.1 release. Smartest move I ever did.
thanks all - just what i was wanting to hear