Does anyone know which Update version of RHEL3 ES should be used with Plesk 7.5.3?

When trying a Plesk 7.5.3 install on top of a minimal RHEL3 ES Update 5 install, I get various dependency errors that halt the install process. What should I be doing to ensure the cleanest (i.e. error-free) install?

Also, does it matter whether i use the x86_64 or i386 build of RHEL3? I would prefer the x86_64 build as it's a dual Xeon EM64T server I'm trying to install on.

Thanks,
Marcel