If you register again with the same email address you should get a message telling you your number.
As to where they have got in the numbers, I think they are going to start back at the beginning of the list again when they start shiping the Mark II (except for the people that withdrew rather than deferring). They do intend to start shiping in much larger numbers though.
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Unit serial number 47 (was 330 in the queue)...
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Remind me to change my signature to something more interesting someday