I've just seen Series 1 for sale in Australia through the ABC Shop:

Green Wing - Series 1, 3 DVD Set, $39.95
Rated: MA
Duration: 468 mins.
Released: 2008
PAL Format - Region 4 DVD
ISBN / Catalogue Number: R-107737-9

Does anyone know when/if they're planning to release a Region 4 version of the 8 DVD Collector's Box Set?

Wow - great to see it's made it out to Oz at last! Thanks for letting us know jaxx.

I suspect that they're going to do the same thing they did with the releases over here - release each individually - and then put them into one big box at the end with the bonus disc included to cash in a second time?!?

That's just speculation though.