The Numatic Hetty Vacuum (the pink one) is back in stock at The Hut. Includes $1 shipping available and for $11 off to make it $99 pounds use coupon 11offJune.
Details about the vacuum and bags can be seen in the last thread at http://www.ozbargain.com.au/node/106364
EDIT: Still available through Zaavi: http://www.zavvi.com/household-appliances/1200w-hetty-vacuum…
I'm confused :(