where did you get the rpm and for what systems was the rpm built for ?
How are you trying to install it ?
the not so good way with rpm or using the correct method using yum
please include the full install command you used and the full error next time .
if you got it from here
then it will most likely never install on the old RHEL 5.4
it was built for fedora 12 or 13
red hat locks the major versions of software , with 5.4 that locking was when 5.0 came out - in 2007
check your paid for access to the red hat support
( that is one of the reasons you DID buy a license for rhel . That and the security / bug fix software updates)