Problem solved, a generic ATX worked perfectly. Just connect the yellow, red and back wires from the ATX power supply to the TS Live cable and it fired up with no problems. Now if I can remove the power supply inards so it fits in the original TS case I'll be back to 100% original but now with a auto switching 110-220v power supply. In case anyone else has this problem the generic ATX power supply is the way to go.
I havent got my unit opened up but I dont suppose you could take a picture and post of the connections.
Yellow ATX ===> TeraStation ?? colour wire
Red ATX ===> TeraStation ?? colour wire
Black ATX ===> TeraStation ?? colour wire
Yellow ATX to Yellow on Terastation
Red AXT to Red on Terastation
Black AXT to Black on Terastation
Since my last posting I need to make a correction. Originally I took the inards of a power supply out of the box with fan and was able to retrofit it to fit inside the Terastation box. Everything worked fine but after a while the Terastation would shut down. At first I thought it was because of excessive heat since I removed the original power supply fan to get it to fit into the original Terastation box but when I took the cover off and blew an external fan at the power supply it still went off after several hours of use so this ruled out the excessive heat issue. Then I figured it was a short circuit that only occurred after a period of time but further testing seemed to rule this out. The only thing I can guess is that the power supply was automatically shutting down since it sensed the fan was not spinning (since I had removed it). As such I got another power supply but kept it in its original box and it has been working for the past several days with no problems. It doesn't look as good with the ATX power supply outside the original TS box but at least its working. After a few weeks of continued operation maybe I'll get brave again and try to remove the inards to put inside the TS box.