hmm..what make i wrong??
Step3 -> My main render is in background,the copied ones are in foreground.You changed it to overlay or so?!
Step5 ->When i fill itl with black,the whole sig is black.Why isn't it at you?
Step6 -> How you make the new render behind the first one?I don't get it

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and i cant make inverse,cant press on it

edit:ok,when i mark it with lasso or so i can press on it,but it always says no pixels were selected...
Btw i place all renders by:File -> Place...
more question will follow,iam sure ^^
Well this is my problem now,Could either you explain how you made that or anyone else i got the same problem on step5 :S Somone please~