Newbie: up2date question

[Thom Rawson]

Hi,

Sorry to bother, but I downloaded FC 2 Test to try and help out with the
testing of stuff, and I was working on getting up2date with the latest
software.  It seems my up2date selects 3 different places at random to
download from whenever I restart the up2date.  One is the Fedora site
(slow), one is a mirror (medium),  and one is another mirror at duke u.
which is decent but seems to be behind in the latest software.

I was making good (but slow) progress, so being the fool that I am I
decided to break something that wasn't broken to begin with.  I tried to
figure out how to point my up2date somewhere else, but in my haste and
misunderstanding I tried doing it through the rhn.redhat.com site by
registering my system.  Now I can't up2date at all b/c the system tells
me I am not registered on any channels.  Hindsight is 20/20 here and I
realize my mistake (fc 2 test isn't part of rhn.redhat), but how do I
reset my up2date back to the "fedora-core-rawhide" channel?

Sorry to be a nuisance.  Someone with a bit of patience with a new guy,
can you please help?

Thanks in advance,
Thom