#2 Mar 01, 2008 20:59
It's because your $baseurl is pointing to localhost, and skin selection (among other bits) is dependent on $baseurl. For example NONE of the links on the page you linked to actually work.
I have no idea how people host a b2evolution blog from their home computer, but I think it's been done and documented somewhere. Maybe in the forums, but maybe in the manual (Docs) linked above?