Actually the problem I had was the version, I was installing the rawhide versions (foolish I know), and that's what was giving me grief.
When I installed the full stable versions of postgres, then everything went smoothly.
FOr 7.2 I wonder if it's using those rawhide versions and thus it's going to have to be worked out anyway now that 7.2 is out?
Sorry I can't be more help than that, maybe you could try installing a slightly older version of postgresql?
Good luck,