Hi Fabrice,
The SEARCH function on
www.16Right.com ACARS lets you search on aircraft registrations, flight numbers, or particular dates (there is about 5 years of history for the Sydney area).
Have a look at
http://www.16right.com/ACARS.php?Reg...&submit=Search and scroll down to the 15/07/2010 to get VH-EBH.