For a preview of what is included in the transition pack, check out this Transition Pack 1 - Sample Video
For the new transitions pack, there are two installers depending on whether you are running WMM 6.0 on a 64-bit or 32-bit version of Windows. The installer will put the necessary files into, C:\Program Files\Movie Maker\Shared.
Prerequisite: Rehan's ShaderTFX add-on.
Windows Movie Maker 6.0:
Blaine's Transition Pack 1 (64-bit) Installer
Blaine's Transition Pack 1 (32-bit) Installer
After restarting Windows Movie Maker, you should have 13 new transitions with corresponding icons:
*Note: These transitions require the architecture of WMM 6.0 and can't be made to work on versions 2.6 or earlier.