QUOTE(ref @ Feb 18 2009, 08:00 AM)

Is the project the main folder? And the file the sub folder?
Where do the different windows fall under? chor,actions, mod, props
Is there a Tree showing the order?
ref
There are options here.
If you started with a new blank project and made models and chors and stuff and never saved any of them separately then when you save the PRJ it will have everything in it in one file.
Exception: Images are never saved in a PRJ nor in a MDL.
However, it is possible to save models and chors and stuff separately (so you could reuse them in a different PRJ for example). If you save them out separately then when you save the PRJ it will only have a link in it to the models and chors and stuff it used. It will automatically look for and load them. If it can't find them it will prompt you to point it to them, so you better have them somewhere.
There are reasons for going either way.