IS THERE ANY WAY TO USE MY DIGITAL CAMERa AS A WEBCAM?

only if it support that feature

Usually it will depend on the model, and it should tell you if you can in the manual or on their website if they have one.

A web cam can be used as a digital camera, but I dont think a digital camera can be used as webcam. I dont know if it comes with a special feature.

well i think u can...but ur gonna be wastin a lott of battery power....basically u have to turn down da quality as low as possible...640x480 shuld do da trick...turn da video mode on and get it to stream da video to da computer as opposed to recording it on da memory card...i have a sony dsc-t9 and i was able to use it...mind u even on a broadband connection it was terribly slow...