If you reinstalled the program using the standard procedure, it should be in
C:\Program Files\muvee Technologies\muvee autoProducer folder. If you can't find it, you can go to Start and type muvee autoProducer in the Search programs and files field. If you still can't locate the program, I suggest you to fully remove it from your computer using Revo Uninstaller. Then, run AdwCleaner to make sure that there are no leftover rogue registry keys or toolbars in your system.
After that, you can visit the review page of the product in order to obtain a link to the official download. Click the green Download button, save the file to your computer and install it following the provided steps. You can choose a destination directory by clicking the Browse button from the Install location window.