When you have finally recorded your scenes, your next step is to edit the scenes. There are many digital editing programs that you can use with your Windows Platform. If you're new to the whole editing scene, Windows Movie Maker 2.1 is probably your best bet. It's free with your package, and it's fairly simply to use. Plus, it works with Vista, which is a definite must.
There's also Wax, which can be used by both professionals and amateurs. Wax will allow you to create more professional-looking movies and add additional special effects. It also works very well with Vista.
Now that you have your editing equipment, it's time to create your videos. Here you can splice in your favorite shots or favorite movie clips and add dialogue. If you didn't have a microphone, adding dialogue as you edit may be best. You can also add music and special effects, such as warping or color enhancement depending on your editing savvy and equipment.