Update using update2 iso

[McDougall, Marshall (FSH)]

I can't use the internet to update my RH installs because I am behind a MS
proxy server.  I would like to update my vanilla RH ES 3.0 servers using the
update2 iso's.  I can mount the iso's, but I haven't been able to figure out
how to actually get the OS to update via the mounted image.  Is there a doc
out there that outlines this process, or does anyone have a quick method of
accomplishing this task?  Any help appreciated.  Thanks.

Regards, Marshall McDougall
Information Technology Branch
Manitoba Family Services and Housing