Do you have a laptop or a PC? I hope you have else the webcam is of no use. Let me assume that you have one. Now you must also have a CD of drivers that came along with the webcam. If not, then follow the link below and search for the correct drivers and download them.
Once you have the PC/laptop, webcam and its drivers, now, you need to install the webcam drivers. To do that follow the link below on installing devices and install the device. Then, run an instant messenger, ie, MSN or Yahoo Messenger, or Google Talk or Skype or whatever you prefer. In the settings of that IM configure this webcam as the default camera to be used with the IM for Video Talk.
And with the SW for the webcam, you can even make videos on the computer and take still pics as well.
Installing Devices on PCs and Laptops
Search for Drivers Online