You'll need to use video editing software to combine the files. In the absence of a Commercial Program to perform the job with, Windows XP's 'Windows Movie Maker' should do the job. Make sure you've downloaded and installed the latest version from 'Windows Update'.

Thanks for the help... I'll give it a try.

Man there are millions seriously. Adobe has some decent ones go to the site www.adobe.com and select what you want to do in this case Video Editing. For free I would recommand Movie Maker it will get the job done if your a beginner it's perfect if you want the most advanced settings Movie Maker does have it's limits.