animation part

first animation's address:
http://www.youtube.com/watch?v=9LPD9yGJypg
second animation's address:
http://www.youtube.com/watch?v=f7qzvj5lD6c&hl=en
third animation's address:
http://www.youtube.com/watch?v=4pOgofdrYDU&hl=en

the link of the 3D warehouse is:
http://sketchup.google.com/3dwarehouse/details?mid=5c44ba387675ea4e877be7342967ded0