Hey pablolink23,
If you highlight your project folder in C2, it will open up some options in the properties window (usually on the left of the screen).
This window contains options for adding 'Version', 'Author', 'ID', 'Description'. Version is normally filled in for you, but you can change this to whatever you'd like.
Just fill these boxes in, and you should be good to go.
Hope that helps :)