Importing logons from files

First, allow multiple selection.  Second, see if Windows (at least Vista) allows you to help it make previews of logons so I don't have to completely import the logon to decide if I like it or not.  You might not be able to do anything with a zipped file, but that file has the entension .logonvista, you should be able to make the file associated with LogonStudio.  From there, you just need a shell extension that provides the thumbnail for Explorer.