Just tried both the Solaris and Linux versions of X-Hive, and MacOSX puked on the binary files for both (binary file not executable). Doh. Frederik at X-Hive suggested there might be MacOSX support by the end of the year. Guess I will have to wait until then.
In the meantime, we'll have to scare up a Windows or Linux box to test on. Rob's always got a RedHat box laying around, so that shouldn't be a problem. Sure hope the Linux build of X-Hive likes RedHat...