After playing around with Flex 4 and action script 3.0 I have managed to put together a simple site.It can be found here.
I am planning on making this a simple browser role playing game.

Everything in the game is done with flex components with custom skins.For example the buttons on the login panel and the buttons after you login are all Flex buttons so event handling and stuff works the same for all.

Right now the user interface consists 4 images for the frame and a image for the world map and they are all embedded in the SWF file which makes the swf file almost one megabyte.I guess the files can be made smaller and this will reduce the load time of the application.All other images will be loaded at run time when you switch from screen to screen.

I am using an FlashDevelop as the IDE and the free Flex 4 SDK from Adobe.This is my first time trying out flash/flex/AS3.0 so I am probably doing most of the stuff in a bad/unoptimized way.

Next step will be learning httprequests and using php/mysql to create accounts and let people login.