About external actionscript and some other stuff

Dear Flashkit forum,

I have downloaded Adobe Flash Professional trial version and stated to use it now im trying to navigate in the jungle of

different features to be able to do some flash programming.

I have some newbie questions to start with:

Actionscript can be added to timeframes or to .as files external to .fla. Is there any difference regarding actionscript code

that can be used in timeframes compared to external files?

All external files examples that I have seen use classes. Is it possible to use procedural programming
in external files?

I dont understand the connection between the external files and the .fla file. How should I include the .as file so that the

.fla file knows that the code in the .as file should be included when publishing a .swf file?

Adobe Flash Professional uses "drag and drop" features to produce a resulting .fla/.swf file. When opening a .fla file is it

possible to see the code that will produce the .swf (exept .as code which it ofcourse is possible to see), or is it all binary

information? I know that Adobe Flex uses MXML is there anything similar in Adobe Flash Professional or is it all binary and

unreadable?