is this actionscript 3.0 or actionscript 2.0? Check your publish settings.
In AS3, you can center align a movieclip with this:
assuming MyMC is the instance name given to your movieclip
what errors are you getting?
In AS3, you can center align a movieclip with this:
Code Select
MyMC.x = stage.stageWidth / 2;
MyMC.y = stage.stageHeight / 2;
assuming MyMC is the instance name given to your movieclip
what errors are you getting?