Here's what the equipment that you got can do.
1 VR36A video receiver - Used to receive the video signal from what ever camera is switched on, one at a time. If it receives more then 1 camera at a time its video will be scrambled and mixed. Its output is a composit video signal.
1 TM751 RF transceiver - Used to receive the RF signals from your remote controls. It then takes the RF it gets from the remotes and puts the ON and OFF commands onto the house wiring. These commands control the power supplies for the ninja and the 2 cameras. This is what turns one camera on and the other off so that the VR36A only gets one signal at a time.
1 VA11A video to USB adapter - Used to convert the composit video signal from the VR36A receiver to a digital signal that goes into your computer by way of the USB connection.
1 Ninja camera (an XCAM2 mounted on a Ninja pan and tilt base) - Your pan and tilt base with a camera mounted on it. The camera can get its power from 2 sources when using the ninja. It could have its own power supply separate from the Ninjas power supply or it can get power from the Ninjas power supply via a small adaptor and using the plug located under the ninjas top camera mounting plate.
1 XCAM2 camera - Second camera which has its own power supply.
1 CR12A remote control - Is a X10 remote that can control 4 cameras and 4 X10 automation modules. (other combinations are available.) This remote when used switches On whatever camera you select and turns off the others. This way it only allows 1 camera signal to get to the computer at a time.
1 CR14A Ninja pan and tilt remote control - Controls the panning and tilting of the ninja. It also has the ability to select 1 of 4 cameras to view like the CR12A. If you hold down the lower black buttons it will scan through cameras once every 6 seconds as long as your holding the button down.
Your Vanguard Software is for displaying your cameras image. Heres where I think the problem is!
You can't use the software to switch cameras, pan the ninja or anything like that because there is no controller to send out signals to the power supplies to turn them on and off and no way to send the RF to the ninja to control the pan/tilt. The Ninjas pan/tilt is controlled by RF and not power line signals. Your missing a controller that will allow control from the program itself. You need a CM19A Wireless PC Transceiver to allow the software to send out RF signals like your remotes do.
Here is what I have seen about the CM19A. They offer it with a Vanguard software package
SEE HERE and it can be purchased by itself. However the write up on it says it is for Windows 95 or 98 and a USB port is needed. See the manual for it
HEREThe Quad Processor and multiple SR36A's I mentioned above is not required unless someone wanted to see multiple LIVE video on one screen at the same time. And yes to that that can be costly. You just need a way for the Software to communicate out to use all the features of the software. The CM19A would send out RF to the TM751.
So bottom line is it looks like your missing a key part to make the software work the way you want it to work. If you do a search on the CM19A or on the FireCracker which is what the CM19A is called you will find more info here on the boards. Post back and let us know how things work out.
It looks like nice software and I may just go ahead and purchase it to try when I get some extra cash. I wonder if it will work with the CM15A controller.