postgresql-8.1.4 installtion problem on FedoraCore 4

Hi all,

          I tried to install postgresql-8.1.4-1PGDG.src.rpm on Fedora Core 4 machine. But I am getting messages

warning: user devrim does not exist - using root
warning: group devrim does not exist - using root
warning: user devrim does not exist - using root
warning: group devrim does not exist - using root

 

and it stops.and PostGreSQL doesn't get installed...

 

So what is the problem???