Leo, thanks for the note. We will try to get better documentation and examples up soon.
The key difference is that FileBrowse 2.0 works in conjunction with the new Directory service. FileBrowse 2 returns exactly what the user selected and doesn't have all the "recurse" type options as 1.0. You can play around and see just what is returned here:
http://browserplus.org/explore/.
It is always best practice so specify at least the version as you show below. Services between versions are not guaranteed to be compatible.
Thanks,
Steve Spencer
p.s. If you have a public site, please let us know. We'd love to put together a page that shows BrowserPlus in action.