Scripts not registering: Make sure that Blender knows where the Scripts are: Pull down the top header to view the User Preferences Window. Go to the section called File Paths, and make sure the Python path is set to /Blender/.blender/scripts, or if you moved the scripts directory, obviously, you need it to point to its actual location.
I’m not sure, but I think that the in the installer version, they sometimes forget to include scripts and plugins. Check your scripts directory (/Blender/.blender/scripts) and make sure there are scripts in it. If there are none, you can download the scripts by doing an svn checkout of:
These are the current scripts; if you are worried about compatibility or something and you want the ones that were shipped with 2.47, do a checkout of
Windows 64bit Blender: Blender recently revamped its support for 64bit on Linux (perhaps BSD and Sun as well), but we did not have it for Windows until Genscher worked to get all the windows dependencies working with 64 bit. It only compiles with cmake, so if you have it you can compile it yourself (there may also be builds on GraphicAll). I think the dev team has been having trouble because they don’t have proffesional licenses of MSVC, which they need to make official versions of Blender ready for 64bit Windows, and for OpenMP support (multi-threaded fluid simulation!). So if you have some extra money lying around, they would love a copy of it.