Kris, i've just quickly thrown something together and im actually getting something now , however it doesnt appear to be quite the same as the image advertised. I set the iframe to 640x260 as implied on the API page, but ended up having to adjust that to 640x420 to get everything in, with around 110px of nothing at the top, and there doesnt appear to be any 'valid' timer.
Is this something which needs to be implemented within a cURL options? There doesnt seem to be much covered in the pdf.