Nope
Unless you still had it in the paste buffer (open up Notepad and try a ctrl-V).
Though as this was about 2 days ago it may be a little late....oops.
Usual procedure is ticking the 'I've forgotten my password' box which will send an email informing you of the correct activation procedure and reseting it to a random load of numbers again. I did a similar thing with a yahoo groups account the other day.