Acer Crystal Eye Webcam. How in the world do I use the webcam on my new Acer Aspire 7720 laptop?

Question

How in the world do I use the webcam on my new Acer Aspire 7720 laptop? There is nothing in the manual. I'll be honest I'm not too smart when it comes to computers. I need step by step directions! I have Acer Crystal Eye Webcam and Acer Arcade Deluxe on my desktop, but am not sure what to do with them. I also have Windows Live Messenger, but I'm wondering if I should download AIM instead. Please help!!!I also have an Acer 7720 and unable to use the crystal eye web cam. I searched the website and it said that I need a third party software.