Flash is developed by Adobe.
the main scripting language used in making flash applications such as games or websites, is actionscript 1.0/2.0
The latest Adobe program for making flash files is Macromedia Flash 8 Basic/Professional.
Adobe gives a 30-day free trail of Flash 8 on their website
Adobe.com - go to 'downloads' from there
There are many other programs, made by different companies for making flash animations and simple websites.
Downloads.com has many of these programs.
hope some of this helps
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