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Jack your car so the tire is off the ground. This may be easier to try with the flat spare tire off the car entirely.

Get some spray ether (aka carb cleaner), shoot some up under the rim of the tire (between the rim and the tire bead). Put a spark to it. It'll pop the bead back on and infate the tire in one shot.
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You can see a demonstration on the Iceland episode Jeremy Clarkson's Motorworld... handily available here:

http://video.google.com/videoplay?docid=7321318726886306534

Gareth