(update)
check out the new tutorial attached in the first post!
you need the TG2 Animation module with the old tutorial.
Hmm not sure why that would happen.
Can you try starting a new scene and animating the default camera?
Is the problem still present?
If this is the case, perhaps its an issue with your TG2 install...
if the problem i isolated to the .tgc I provided- please let me know!
Cheers