When I Hav The Camera Plugged In To The USB It Shows A Blue Screen That Shows MSDC And A Red Light is On. What Does That Mean?

SOURCE: Blue Screen MSDC

You should only get that screen when it's charging on the wall charger or when it is hooked up to your computer via the USB cord.

SOURCE: msdc

i have the same camera and the same problem but i have found out msdc means mass storage device, for the camera to work you have to have a memory card inside it. im getting one tomorrow for mine, so hopefully that should solve the problem :)

SOURCE: vivitar 8025 comes up msdc when i connect usb lead to my computer

It's supposed to do that, informing you that it's in mass storage mode. Once connected you control it from the computer, not the camera.

SOURCE: i have a vivitar 8025 camera it has on the screen

The MSDC option in digital cameras stands for Mass Storage Device Class. It is one of the many subclasses of the USB computer peripheral connection protocol.
This class as implemented in digital cameras, allows a connection between a computer and a digital camera by showing the digital camera, when connected to the computer, as a removable disk drive, temporarily attached to the computer. Pictures taken are retrieved using either cut and paste, copy and paste or drag and drop from the digital camera's picture folder onto a real hard drive or other writeable media available in the computer.

SOURCE: i plugged my usb cord into my vivitar vivacam to27

This is perfectly normal. The camera is telling you that it's connected to the computer. You download pictures from it using the computer, not the camera.