No the alpha is the testing stage of development, the beta is the fully coded version with the installerand Blender 2.5x is the final bug-fixed stable version.
see here www.blender.org/development/release-logs/blender-250/ (Blender 2.5 Series Roadmap)
(see here www.blender.org/development/release-logs/blender-250/ (Blender 2.5 Series Roadmap)
maiden is filmed before a live studio audience,
Thu 12 Aug 2010, 8:48,
archived)
