Topic: Flash Required? New User

I just need confirmation on this.  I have licensed Simpleview Pro and want to make two changes: (1) activate the "back button", and (2) activate autoplay.  From what I read, I need too recompile the "simpleview.fla" file in order to produce a new, modified "viewer.swf" file, and that requires a copy of Flash. 
Do I really have to buy a copy of Flash to get this done?

Is that correct?