running up2date --configure doesn't include a way to change the serverURL and noSSLServerURL options in the config file. This was necessary to move from the beta servers to the main ones after the beta period was over. Additionally, it makes it hard to use other non-RHN servers such as http://openup.mullicrusher.org/
use the text mode config or edit the file. In normal operations, there is no need to change the serverURL. A subtle "bug report" btw ;->
I'll actually try to add this to the next release, should be straightforward.
should be there in versions 3.1.12 or higher
Fix confirmed with up2date-3.1.15-7.