ipod touch 2g wont sync videos please help!!!

Because the format is not compatible with the 2G iPod. See:

iTunes: May be unable to transfer videos to iPhone, iPad, or iPod

iTunes: Frequently asked questions about viewing and syncing videos

You may have to use a third-party program like the free HandBrake to convert the video

The 2G can only sync/play SD videos, NOt HD

H.264 video, up to 1.5 Mbps, 640 by 480 pixels, 30 frames per second, Low-Complexity version of the H.264 Baseline Profile with AAC-LC audio up to 160 Kbps, 48kHz, stereo audio in .m4v, .mp4, and .mov file formats; H.264 video, up to 2.5 Mbps, 640 by 480 pixels, 30 frames per second, Baseline Profile up to Level 3.0 with AAC-LC audio up to 160 Kbps, 48kHz, stereo audio in .m4v, .mp4, and .mov file formats; MPEG-4 video, up to 2.5 Mbps, 640 by 480 pixels, 30 frames per second, Simple Profile with AAC-LC audio up to 160 Kbps, 48kHz, stereo audio in .m4v, .mp4, and .mov file formats

Did you read these:

iTunes: May be unable to transfer videos to iPhone, iPad, or iPod

iTunes: Frequently asked questions about viewing and syncing videos

You need the SD version since now many are offered in both SD (standard definition) and HD (standard definition). Usually if you purchase the HD version you can download the SD version for no additional cost

In iTunes library click on it and select Get Info. Go to the Summary tab

If you right click on the videos in your iTunes library and select Get Info what is shown in the Summary tab?

Does it play in iTunes on your computer?

A media kind should be listed

I find no movie titled that in the iTunes Movie store but there is a song with that title.

Just what happens when you try to play it in iTunes?

It should play in iTunes with no additional download of another player.