Help with DiGiCam 30 card and cameras

[carwashsystems 0]

Can anyone help? I have a DiGicam 30 capture card and 4 ptz cameras im trying to get working. The digicam viewing software doesn't work and only one camera will ptz. My questions are:

1) is there any viewing software out there that I can view all 4 cameras on?

2) how does one hook up the cameras so they all ptz, we have a rs-485 converter in the com port of the pc.

Please help! Thank you so much for your time.