[CentOS] question on CentOS 4.4 SCD -> CentOS 5?

Mon Oct 15 19:01:49 UTC 2007
Rogelio <scubacuda at gmail.com>

If possible, I'd like to do a minimal l CentOS 4.4 (the Single Server
CD) installation and then mass upgrade everything to CentOS 5.

I googled and found this URL


Is this recommended?  Or will might I run into any problems?