Tutorials for new 2.5 user interface?

I’ve been learning on blender 2.49 and just recently switched over to the 2.5 beta. I am SO lost with the new interface. I’m having a hard time even finding sub-surfacing. Does anyone know where I can find an in-depth tutorial on the new interface? Something almost like a manual? Any help would be appreciated!

Welcome to Blenderartists!
check out blender cookie’s getting started series: http://www.blendercookie.com/getting-started-with-blender/