thanks,
i'm running betas by clicking http://www.sweethome3d.eu/SweetHome3D.2.3.beta.jnlp
Windows vista 32.
That doesnt take me through the installer routine... I couldnt find an .exe for the betas.

afa, the export, do you mean that i dont need a pluggin? Seems like I do?

When trying to export I get "couldnt export sh3 file. access denied (java.io.filepermission C:users/blah/blah"

Ok, i am able to export from 2.2 (installed locally). But i guess this doesnt save your grouped objects anyway...