Download the webcam drivers from the Dell website: http://support.dell.com/support/downloads/driverslist.aspx?c=us&l=en&s=gen&ServiceTag=&SystemID=VOS_N_1510&os=WLH&osl=en&catid=&impid=
Once installed it should show up in whichever application you use that can use a webcam, such as MSN or Skype.