Hi and thanks for all the replies. I'm really not sure about the actual age of the systems in question but they were new, according to the Ebay seller. And yes, there are pretty cheap (as I am) $40.00 t0 $50.00 US for a fair amount of sensors. a siren etc. etc. You can check them out there easily if you search for "wireless burglar alarm systems" and they sure do work!
To address Mr. Sixwheeldbeast, you are correct my friend. The new panel uses an enrollment system unlike the old one which, as I mentioned, appears to use the jumper block. Not being sure how these things connect to each other I nevertheless suspect that it's not too complicated to get them to communicate. I would think that if I can determine what frequency the new panel uses to signal its sensors I should be able to program the jumpers in the old sensors appropriately. Am i making sense?
I am attaching some pics to help out anyone who cares to take another shot at it.