Tom,
The Application Support folder has no Final Cut folder, only Final Cut Express and Final Cut Studio.
I guess I will have to take out my Snow Leopard disk and re-install.
Any advice on the proper way to do this?
Reinstalling Snow Leopard is not likely to solve your problems. You'll end up wasting a lot of time.
The lack of the aforementioned folder has nothing to do with it. It just means that it has not been created yet.
For sure, you never downloaded the "additional content" - that is something that is done from inside FCP X, from the menu
Final Cut Pro->Download Additional Content...
As a side effect, the folder "/Library/Application Support/Final Cut Pro" will be automatically created, as this where this additional content will be stored.