Hi
I am pretty certain you can only output one project at a time so you will have to render each one. 
If you want several separate films, then probably the best way to proceed is to make one big project from your clips and save the .vpj file (the project file)
Now cut the sequence line at the end of the first "film" and delete the rest. Save the film as an .avi
Reload the .vpj file and trim the sequence again to leave the second film. Save as an .avi
Reload the .vpj file..........etc. & etc..
This will give you your 3 (or more) separate films.
You could also render the whole sequence at once and then and use something like Virtual dub to split it up.
VP won't let you save more than one project to DVD so use a third party creator such as DVDStyler which will provide proper interactive menus for your films.(It's free)
Don't know whether VP will upload to UTube. (or whether this choice actually works in the free version) ..In the past I have uploaded directly using UT
Nat