[CentOS] Zoneminder-1.22.3-6.fc7.i386.rpm has dependency errors on Centos5 server-how to fix?

Running Centos5 server software.

Running ALL software except virtualization and server cluster.

Patched this server software via yum updates as of 9.24.2007

Downloaded the webcam software for FC7 from:
http://koji.fedoraproject.org/koji/buildinfo?buildID=10106

Zoneminder-1.22.3-6.fc7.i386.rpm 
When YUM tried to install this version of Zondminder, finds this 1 missing dependency:

Missing Dependency: perl(Device::SerialPort) is needed by package zoneminder

Question: how do I resolve this missing dependency?

I have never compiled a kernal or anything else.

Please lead me to a direction to resolve this.

Thank you for your time.

Ken