What version of Premiere Elements do you have? On what computer operating system is it installed?
What is your web cam - built into the computer or one plugged into the computer with USB connection?
Is this a how to request or are you having problems getting your web cam camera to be recognized by the Premiere Elements Add Media/Get Media/Web Cam feature choice?
Please consider, give more information, and then we can decide what needs to be done so that you can achieve your project goals.
Any questions or need clarification on any of the above, please do not hesitate to ask.