Tethered to a P7000

A while ago I thought about getting an epson P7000 multimedia veiwer so went on YOU TUBE to check them out on video there was this guy that does the Digital Rev reveiws (Hanchip) I think.He had a P7000 tethered to 5D MKll and he could in live veiw shoot from the P7000 screen.At the time I had neither the camera or the veiwer but now I have both and got them mainly for the tethered shooting for macro shots in awkward places like low down and the like.But when I tried to see if it would work on my gear I could,nt get the live on the P7000 screen I can take a picture and that comes up on the P7000 screen but no live veiw. My firmware for camera is version 2.0.9 and for the P7000 is 02.51.0325-0110-0200-0123 is there anyone out there that can help
Thankyou
Thankyou
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