I've had to troubleshoot the bitrock installer a few times in the build channel and for me the errors are always befuddling.  I know the installer works fine for most people but for those that just can't seem to get the installer to work I've built another graphical installer based on InstallJammer.  Don't know if its helpful, its just a repackage of Xordans binaries so it should be pretty universal.

http://vaalnor.mine.nu/Downloads/PlaneShift%20Crystal%20Blue-0.3.018-Linux-x86-Install

If there are any problems with me offering this download let me know - I mean I know its technically illegal, but this is purely unofficial for a few people whom the current installer doesn't work for.  I kind of figure no one will care too much.