Future man in space/shuttle replacement vehicles

As a follow-on to recent discussions of the shuttle or manned space
exploration in several threads on these two groups, an illustration of
one of NASA's current concepts for future space exploration vehicles is
temporarily available at

http://www.stanford.edu/~siegman/shuttle_replacement.gif

If anyone can supply a link to this same graphic on an official NASA or
other website, I'd be glad to have it.