HI Sujatha,
I too facing the same problem.
I have downloaded above s/w and installed on my lap, but still i am not able to see webcm in skyp.
When I try to access the webcam from skype, Dell webcam central application is opened and asking to change the video resolution lower than 1024X720. I tried change the screen resolution but there I can not see this resolution to set.
Please help to resolve this... Thank in adv :)