Installing orca in Linux 5.2 64 bit

Hello All,
We have a new project in place that calls for RHEL 5.2 64 bit version. This is our first 5.2 as well as 64 bit exposure. On our other Solaris and RHEL 4 systems we used a stats gathering software called ORCA. We are running into problems however trying to install it on RHEL 5.2 64 bit Linux. has anyone installed ORCA successfully on a RHEL 5.2 64 bit Linux system ? I have tried posting to the ORCA users list but I'm still waiting for a response. Any help/advice would be appreciated. Thanks.

Dennis