(2009-09-08) Timecapsule And Uverse
Update: turned out to be pretty simple. Once I turned on the Time Capsule, I had to switch to desktop (running Airport Utility) to use the Time Capsule's old WiFi network. Then I could change the settings on it to "join an existing wireless network" and enter the UVerse password.
Oct'2009 update - no longer using for Printer Sharing - 2009-10-05-HpPhotosmartMultifunctionBox