Aloys wrote:The UI does look quite different at first, especially the change of the 'space bar menu',...
Hint: Under [File] => [User Preferences] => [Add-Ons] set the checkbox for [3D View: Dynamic Spacebar Menu], which adds much more options when spacebar is hit, especially the [Add Object Menu].
There you will find the well-known objects from Blender 2.49b.

And there are *many* other additional features under Add-Ons, mostly disabled by default; just try some. Of course, simply enabling them all may result in blowing our brain because of the huge count of new choices / options / menus.
EDIT:
By the way, our official source for getting stable Blender releases should be this:
http://www.blender.org/download/get-blender/(and NOT graphicall.org. Well, sure, it's up to each individual to try slightly different builds with other features, but I guess this could lead to problems sooner or later eventually)
... unless otherwise stated.
