I have the same problem on Vista x64. That thread is pretty much useless. There is one guy that says he could extract the files via command line but he did not post details and when I use the /? switch for the installer file on the command line it gives no option to just extract the files.
Sony's Connect website plainly states they support "Windows Vista". It does not make any distinction between 32 and 64bit versions.
EDIT: I emailed Sony tonight about this problem. I will let you know what they reply with, if they do.
Last edited by Leaping Gnome; 07-21-2008 at 12:31 AM.