"Browse Other Time Machine Disks" not working properly
I'm using a Time Capsule connected wirelessly, to which two computers are backed up via Time Machine. I'm trying to restore files using Jane, my current Mac, from Herbie, my old Mac. I mount the Time Machine drive in the Finder, double-click Herbie.sparsebundle, and choose "Browse Other Time Machine Disks." It goes into the Time Machine interface...and shows me the top level of my computer. Opening the "Backup of Herbie" mounted disk shows same thing I would see if I just browsed "Backup of Herbie" in the Finder; i.e. a bunch of dated folders that I can browse. Burrowing into those folders never shows that I can go backwards in time (although the right bar does in fact show the date of my earliest backup), nor will the "Restore" button highlight when I select an actual file.
In other words this function doesn't work at all for me. What's going wrong?
iMac, Mac OS X (10.6.8)