The following guide will show you how to download YouTube videos for Windows Movie Maker, convert YouTube videos (FLV) to WMV/AVI format for Windows Movie Maker and put YouTube videos into Windows Movie Maker.
Part 1: How to free download YouTube Video?
Method 1:
Step1,
Use an Internet Brower (IE, Firefox) to navigate YouTube. If you would like to download current YouTube Video, please go to Address Bar and press "Ctrl+C" to copy the URL in the Address Bar field.
Step2,
Go to Cucusoft YouTube Mate, click "Download" Button (as following). A download setting dialog will pop up. Please press "Ctrl+V" to paste previous URL in to Video URL field.

Step3 ,
Click "OK" button, the download item will be added in the download list. Step4 , 4. After the item status becomes "Downloading Done", you can play it offline or convert it to other video formats.
Method 2:
I'd like to recommend using the online YouTube downloader called GrabTube to download videos from YouTube. With this online converter, you can download and convert YouTube video to MP3, 3GP, AVI, FLV or MPG. It is as easy to use as:
1. Browse on over to http://www.grab-tube.com/converter where the converter lives and you will see a screen that looks like this:

Part 2: Converting YouTube Video Guide:
Step1,
Click "Add" Button.
Step2,
Select the files you would like to play/convert. You can select multiple files one time. All the files will be displayed in the play list.
Step3,
Click "Profile" dropdown list to select a profile you need.
Step4,
If you need to set an new output folder, please click the button right of "Output Folder" to select a new one..
Step5,
Click "Convert" button (a pic here) to start conversion..
Output setting
By using default setting, you can quickly accomplish many common tasks. Normally, please do not change the output setting.
Various types of Output settings are available in Cucusoft YouTube Mate. The following table provides an overview of the tasks you can complete using settings.

Playing YouTube Video Guide:
Step1,
Click "Add" Button .
Step2,
Select the files you would like to play/convert. You can select multiple files one time. All the files will be displayed in the play list.
Step3 ,
Select one item you would like to play, click "Play" button to play it. Or, you can direct double click the clip in the play list
Part 3. How to put YouTube videos to Windows Movie Maker?
After you get the output video clip downloaded and converted from YouTube, now you can begin to put it into your Windows Movie Maker.
Click on "File". Then click on "Import into collections". A window will appear. In the window, navigate to the video clip you downloaded and converted from YouTube just now. Then double click on the file. You'll see the icon for the file in your Windows Movie Maker "Collections".

About Windows Movie Maker:
Windows Movie Maker is a totally free program that comes with Windows XP Home Edition, Windows XP Media Center Edition, Windows XP Professional, and Windows Vista (also called Windows DVD Maker). Below are the media formats accepted by Windows Movie Maker:
Video files: .asf, .avi, .wmv
Movie files: MPEG1, .mpeg, .mpg, .mlv, .mp2
Audio files: .wav, .snd, .au, .aif, .aifc, .aiff
Windows media files: .asf, .wm, .wma, .wmv
MP3 format audio: .mp3