Chadsr21 -
Those cameras should work fine with your system. They are HDCVI cameras with an option to output analog signal.
Look at the pigtail that comes from the camera - you'll see a BNC video output / a 12V DC power connector / and a short lead with two bare wires. Strip back the insulation on those two wires and twist them together. That will enable the analog output from the camera. Then it should work with your DVR. Let us know if that helps.