You can download RedHat built RPM's of Evolution 1.0 for 7.2 here:
Development packages are optional or it will depend on what you have
installed now.This is what I installed.This seemed to be the minimum
required to install Evolution. This was on a RH 7.2 box with all available errata installed.
How I installed. This may vary for you depending upon what you have installed.
rpm -Fvh ORBit* libxml* bonobo* GConf* oaf*
rpm -Uvh bonobo-conf* gal* libgal* gtkhtml* libgtkhtml9*
rpm -Fvh pilot*
rpm -Uvh gnome-pilot* evolution*.rpm
Please note there are alot of other Gnome related RPM's in the gnomehide directory. These should be considered beta, along with the ones listed above. The usual "use at your own risk" rule applies. So far Evolution is working very well.