I just wanted to let everyone know that I found an RPM for mod_gzip ( mod_gzip-18.104.22.168a-2.src.rpm ) at http://vlugnet.org/apt/redhat/7.2/en/i386/SRPMS.vlugrpms/mod_gzip-22.214.171.124a-2.src.rpm . It just installed fine on my RH 7.2 system. Be aware that you will have to modify your httpd.conf after installing the RPM to activate the gziping.
It would be nice if there was a newer version out there, but this on is working for me so far.
To test if mod_gzip is working you can use the web page at http://leknor.com/code/gziped.php .