I have not explored the Adobe Flash FLEX* version, but I've looked into such things as Adobe Bridge "output" mode to generate a Flash Web Gallery (which produces a nice SWF movie) and http://www.wix.com to "create your free Flash website" from WIX templates.
Some people, who do not know how to create their own Flash (or even non-Flash) websites, love such generator aids. But, for someone like me who knows Flash and website development, it is frustrating not to have the actual FLA file to work with and/or be stuck in someone's template.
It's like dragging out Dreamweaver AbsolutePositioned divs, slicing an image, or using <TABLE> for Web layouts (which makes my stomach curdle when taught as the right method). But, if you just gotta get some stuff up on the Web and it works for you, what the heck?
*Correction: I meant "CATALYST" not "FLEX." From its 1996 inception as Future Splash, which Macromedia acquired and dubbed FLASH, and through all its versions, "Flash"was FLASH -- until Adobe purchased Macromedia in 2005.
The way Adobe's marketing/branding has fractured "Flash" seems kooky and confusing. What I knew as "Flash" is now:
Among other Adobe Flash things are:
Adobe Flash Professional CS5.5 software ... authoring environment for producing ... interactive content [for] desktops, smartphones, tablets, and televisions.
Adobe Flash Catalyst CS5.5 ... approachable interaction design software that enables you to easily transform Adobe Photoshop®, Illustrator®, and Fireworks® artwork into expressive, fully interactive projects without writing code ....
Adobe Flash Builder 4.5 software, formerly Adobe Flex® Builder®, is an Eclipse™ based development tool for rapidly building expressive mobile, web, and desktop applications using ActionScript® and the open source Flex framework.