I dissected the script and was able to browse the download site (updates.endian.org) manually with my browser. The files needed for the upgrade are not there. Look at the URL carefully in the script and you'll see how to authenticate:
ID = <your "username" when you registered>
PW = community
Like everyone else, I'm just waiting it out too ;-)
I followed your advice and browsed to this URL:
http://$USERNAME:community@updates.endian.org/$CHANNEL/
where $USERNAME = my registered email address
$CHANNEL = stable
There are 2 directories listed there: pool and repodata
The "pool" directory contains a lot of files .. guessing about 50. They are all .rpm
The "repodata" directory contains these files:
filelists.xml.gz
other.xml.gz
primary.xml.gz
repomd.xml
As you navigate through the directory structure to the filelists.xml file you will see that it is stored in subdirectory named "2.2" which to me indicates the updates are for version 2.2 not 2.3.
http://updates.endian.org/stable/repodata/This is what I have so far. I'll keep digging and let you know what I find out.