I’m surprised at just how easy it was to repair the loose flash shoe on my Canon Digital Rebel XT!
I followed the instructions here conraderb.com (found through a Google search) and once I figured out what to do, it took me about 30 seconds to do the repair.
The flash shoe, which was loose and causing the flash to not fire at all or to fire at full strength (so photographs were all washed out), is now fixed and my flash is working perfectly. And the connection between the flash and the camera feels like new (even when it was working right, it had been feeling a little bit loose).