I want to thank Michele and Stephanie for their advice. When I searched on Google and for AVI, I found out movie maker can import uncompressed files. When I saved the files they were in compressed format. So, I went back to my files and uncompressed them. Then, I tried importing them in movie maker and it worked. Next, I imported all the files that I need at this point into my project and inserted them in my movie. It will take some time to get the timing right on the sound effects and the music but I will get there. I hope everyone's movie projects are going well.