I tried following ozz's tutorial on creating your own script but this one is abit tricky.
Example site http://redesocial.dinheirodanet.com/signup
It requires you verify the email before you get to see the registration form(an attempt at preventing botting probably).Would be great if you can add this as it's quite popular and good for indexing once a micro message is left with a link.
inurl:view "Powered by Blogtronix" -returns 15m results
inurl:view "Powered by sharetronix" -returns 2.8m results
inurl:view/post "Attached Image: " "Powered by" -returns 172k results
Seeing they are too many,it would be good if they could be filtered by PR.