I have a camera question?

I got a camera for my birthday a few years back from my grandpa. I lost the manual, and I want to delete some pictures. It is a Digitrex DSC-2100 Digital camera. Does anyone else have this camera know how I could delete some pics?

http://www.dansdata.com/dsc2100.htm

This article tells about your camera. It mentions that a copy of the manual comes with the camera's software. Check your computer to see if you have it there, in a PDF file. If not, the article provides a link for it.