Your best bet would be to use Red Hat's up2date utility. up2date will automagicly download and update your currentently installed rpms to the latest from ftp://updates.redhat.com.
There are also many other options (command line options) such as, to just list the outdated rpms or just download the rpms and not install them. You also have the option to have an email sent to you when an rpm is out of date due to updates or bugs. It's pretty simple to setup and there's also a gui but personally, i like the command line.
If you don't have up2date installed you will find it on your 7.1 CD and you will no longer have to wait for updates via mailed CDs.