This deal is back again, but need to book a fair way in advance - all dates will be in May 2017.
Nothing on their website that I can see as yet, but apparently starts at 12pm today running until 12pm on Monday.
Will surely be limited stock, so get in quick. Non-refundable, no baggage, etc.
Example: CBR to MEL return, Thurs 4/5/17 to Mon 8/5/17 - $80 return with no baggage. Watch out for Tiger automatically adding checked baggage!