You need to rollback to build 398. The one you are trying to use wont work.
I believe the Legacy Installer will install that for you (or you can install it manually. If you do, don't forget the packing slips)
(This was the Support forum you meant this for, by the way. http://forum.freeso.org/forums/support.29/
More detailed info on the subject can be found in other posts there, especially the first pinned post which has instructions for manually installing)