I think ours has not the right statement on top , something about $php[Self] or so, will fix that this evening
[edit]I was right, it is now fixed (I made it for nuke 6.5 RC1 and it changed in RC2 but I never updated it due to the adv version)
If you download ours it will work too, but it seems to work on this site
http://www.rabidsheep.com wich I believe is yours