Movie Maker Missing from Windows 7?
If you want it you will have to install version 2.6 that was made for Vista but in my opinion it is worse than the previous version for XP. I would not recommend Window movie maker 2.6 to anyone. You would be much better of with just about any other software you can find.
I've switched to iMovie on my new iMac and I love it.
If you are still willing to give Windows Movie Make 2.6 a trying here is the link to download it.