Path between Imovie HD and IDVD

When I press the "create IDVD project" in IMOVIE HD and expect my movie to be exported to IDVD I get nothing.

Can any one tell me how to see if the path between the two programs is gone? I am using MAC Leopard 10.5.8,

Imovie 5.0.2, IDVD 7.0.4. I have used IDVD in the past but this movie is too large and I needed to break it up.

I also, saved the file in the movies folder and then used the drag and drop into IDVD but what to with it, way too large for disc.

I still need to know why I cannot use the documented procedure. Any ideas?