homeboy:
If I have 3 analog cameras connected to a 8 channel dvr card and decided to add 1 megapixel cam, Can all 4 cameras display on a 4 way screen

  In our DVR Server software, analog cameras are connected to capture & compression cards, then if you want to add some IP devices such as IP cameras/ DVS/ EMDVR, this is supported. when all these devices are in the same software, they will be displayed correctly. But I have to say, the channels for all these devices can not exceed 64 channels.

  I'm not sure what do you mean by "Can all 4 cameras display on a 4 way screen"?  If you mean you want to display these video in 4 seperate monitors, 1 channel each monitor, I think you have to use the Multi monitor function, this will reach your target.

  Best Regards.