Error during distribution upgrade process

[Alex P Janssen Jr]

Attempting to upgrade to 7.10 Gutsy Gibbon in GUI.
Getting the following errors:
Failed to fetch
http://medibuntu.sos-sts.com/repo/dists/feisty/free/binary-i386/Packages.gz 302 Found
Failed to fetch
http://medibuntu.sos-sts.com/repo/dists/feisty/non-free/binary-i386/Packages.gz 302 Found
Failed to fetch
http://medibuntu.sos-sts.com/repo/dists/feisty/free/source/Sources.gz
302 Found
Failed to fetch
http://medibuntu.sos-sts.com/repo/dists/feisty/non-free/source/Sources.gz 302 Found

Is there anything I can do to get past this?

Thanks,
Alex