windows media

i have been working with my windows movie maker but i keep getting a message that says go to fourcc.org/indexcod.htm video codec.
i went to the site but dont know what top do next. i have a new computer that is windows vista. can someone please help me

Use one of the utilities mentioned here
http://www.moviecodec.com/topics/61931p1.html
fourcc.org is awesome, but it’s not going to be much help if you don’t know which fourcc you need!