dependency problem

[James D. Parra]

Hello,
 
Its been a long, long time since I've posted to this list.  Recently,
purchased a server running RedHat Enterprise 5.3 and I am trying to
install openvpn using yum install openvpn-*.rpm, but am getting a missing
dependency of liblzo.so.1. I used 'yum list all |grep liblz' to try to
locate the package. 
 
Where can I find that library and what is the best way to solve dependency
problems on RedHat?
 
Many thanks in advance. 
 

James