These great components for Adobe/Macromedia Flash,what should I say? enjoy them!

EnFlash
an open source Application Framework that brings new possibilities to the Flash Player Platform. It provides a set of visual components, utility classes and data structures that ease the development of sophisticated cross platform applications. EnFlash is based on pure object oriented ActionScript 2 and takes advantage of XML and CSS.With it, you will be able to create zoomable interfaces, include or create movie clips and also have a low lever XML mapping. Start creating your very own flash website.

EnFlash is GPL licensed.

SMX Components Set
a component library for Flash.written from the ground up in actionscript 2.0.Compatible with Player versions 6, 7 and 8. The set allows rapid application development and can be formatted using external style and content xml files. and while it bears little resemblance in structure to the popular MX components built by Macromedia, it does retain some of the more familiar functionality while including a lot of extra features

SMX Components Set is MPL 1.1/GPL 2.0/LGPL 2.1 licensed.

ActionStep
an Actionscript 2.0 implementation of a subset of the OpenStep Application Kit and aim to be a valid alternative to Flash V2 Components.

It can be used in commercial or non-commercial projects(License).

AsWing
an Open Source Flash ActionScript GUI framework and library that allows programmers to make their flash application(or RIA) UI easily.It provides a set of GUI components and many Util classes.

AsWing is BSD licensed