Did'nt attend the conference, ur post ws quite explanatory to help me do the crack. Thanks :)
Would appreciate if this could be cracked without the use of Backtrack.
Hope to see a script by u instead(soon) :)

U need a tool who develops it is not the concern if we already have it as Backtrack why not use it

besides backtrack there are various such bootable like the operator etc....
but the tool is aircrack in most cases. I can be used in windows too if you have right kind of hardware...
windows version of aircrack is available @ http://www.aircrack-ng.org/doku.php?id=downloads