I've posted before about my reworking of the flare library to make it work well within Flex and take advantage of the Spark Skinning architecture.
Well, now I've created a new release. This one is now being used in a production environment, so while it's buggy as all heck and has large swags of the original library not converted over, it does indeed work well for a collection of uses.
Come and have a read how to use it in your Flex project, and download the library and example project if you like.
Hope it's helpful for you. (Released under a freeBSD license, as the original flare is under BSD.)