It's a bug in your events - remember the events are run top-to-bottom, and when the mouse is over mC2Cog, 'cursor is not over mRotaSprite' is true and sets the cursor to a hand. You probably want to use both 'cursor is not over mRotaSprite' and 'cursor is not over mC2Cog' in one event.
Silly me, I did not think about this one. Thanks for pointing it out.
This is by design - when you drag from the project tab you get a default object. Use ctrl+drag in the layout to make copies of existing objects.
Strange, for a second there I was sure that dragging other kind of objects kept the properties you had set up. Guess I was tired.
Thanks for the answers.