Do not make flash just because you downloaded the free version.
Do not make flash if you cannot even draw worth crap.
Do not make flash if you do not have a sense of order and neatness.
Do not make flash if you do not know how to make non repetitive boring bland dumb music from a cheap ass program that only noobs use.
Do not make flash if you suck at life.
Do; Pay for the full version before you make a flash (this keeps noobs out of the picture cuz noobs don't have money).
Do; Make flash once you have proven you have a sense of order and not just random ADHD inspired crap.
Do; Make flash once you are able to draw at least half assed, or at least know how to make good use of what you can do.
Do; Make flash if you know somebody who makes good music to a theme that isn't boring and dull and goes well with the action in the flash, or can do it yourself (though rarely can the actual flash maker do both, so don't kid yourself and suck it up if you have to, and get somebody to do it for you, instead of looking like a fool).