Oooo im struggling to remember if you can. Im not sure. Have you checked the help menu that comes with the program? That would be a good place to start. Also look under file for perhaps an "import" function.
Though I stopped using that program and switched to Sibelius 4.
That one allows you to scan in music. There is a demo of the program avaliable too. However, you will need a program called "Photoscore" to be able to scan the music in. Im not familiar with it because I dont have a scanner lol.
Hope this has helped. PM/email me if u need more help and ill try to assist you.