Here is the reporting procedure,
brokers will report each day’s short sales (covered short sales and certain naked short sales) by security to ASX via an online facility by 9am the following day. That information will be collated and a market figure by security will be released each day by ASX.
http://www.asic.gov.au/asic/asic.nsf/byheadline/Requirements+for+disclosure+and+reporting+of+short+sales+from+19+November+2008?openDocument
