After you have synchronized your video and audio and you're happy with the results, it's time to put on titles and credits.
In Windows Movie Maker, you go to "Tools" in the top menu and click on "Titles and Credits." From here, you have access to all the title and credit editing for your video. Choose the option to put a title at the beginning of your video. When you do this, you get a screen where you can type in the text for your title. After you have your title text they way you want it, click on the links on the screen to choose your font, your color, and any effects you want to use on the text. After you have set the opening title, it will automatically appear at the beginning of your video.
In this same area, you can also indicate that you want to add credits to your video. In Windows Movie Maker, you can indicate if you want your credits to scroll up the screen or not. When putting together your credits, be sure to include as many credits as you can. This includes giving credit to whoever wrote and recorded the music you used in your video, the name of the production company and director for the anime footage you use, giving credit to anyone who provided help with the video (for example, if a friend used their camera and shot some footage especially for your project). Not only is providing credit to as many people as possible a nice gesture, but it could also potentially help you if any copyright holders try to come after you for copyright infringement.
If you are using a movie editing software that is not Windows Movie Maker, you need to consult the manual or instructions that came with it in order to know how to create your title and credits with your specific program.
After you finish adding your titles and credits, you can sit down and watch the result of all your hard work. If you want to share you video with your friends, you should be able to have a private exhibition on your own computer without much risk of being sued for copyright infringement. However, if you share or distribute your project by burning it onto CDs or posting it to Internet websites such as YouTube, you are opening yourself up to potential lawsuits for copyright infringement.