I tried Jon's solution but the aforementioned directories were empty!
So Googling around, I found "rrdtool-1.0.33-02.i386.rpm" (sorry, no link) which I installed first. Then I copied the perl files before installing "rrdtool-1.0.33-2.asp.i386.rpm", "sysstat-4.0.3-12.i386.rpm", and "eneo-sysmon-3.0-15.noarch.rpm".
Works like a charm! Thanx, Jon!
/Jens, newbie