PGP WDE for Linux is supported up to RHEL 6.0 now. This is because they are now using DKMS modules for PGP WDE where in the past we had to compile them and put them in a repository to download.
You can download 10.2 at fileconnect here:
https://fileconnect.symantec.com
If you are having problems finding 10.2 in the fileconnect site you will need to contact customer service at (800) 721-3934.