Dynamic Flags

[Tibberous]

I am making a game where each player has a different symbol for a flag. The symbols are just simple swf files that are dynamically loaded for each player. The problem I am having is that I want to the symbols to be part of a flag and wave. Now, the waving of the flag is just accomplished by some basic shape envoloping and some gradient shape tweens in an alpha layer, but how do I go about envelope a shape I dynamically loaded?

Thanks for any advice, this really has me stumped...