Well, I don't know...this may help new users out, when it's working:

Dynamic Documentation!.....
http://www.blendernation.com/dynamic-documentation/

Not relate to link above.
I have been trying out some tutorials between the two versions...because of the new
ui...I am finding thing's go much smoother...less hunting around for tools/panels...I
even have the ui set up almost exactly the same way between the two ,basically.
In some ways, using the 2.5 as a guide to 2.49b.
I just started using blender a few months ago...but in 3d for for sometime now.

2.49b...my set up, startup scene...