What sort of information do you want?

If you go to http://dps1.travelocity.com/lognlogi...tr_module=FARE and put in LHR and SYD for From/TO and then seach just QF, it will return a list of published fares.

The rules you want will be found in the fare bases of MxDIS2 ( where x is a season code depending on the dates you chose ) and , for the slightly more expensive H based ticket, HxDIS2

Note: The fare quoted by travelocity is probably higher than you will find if you phone up QF and book direct, since QF do/did offer a net (unpublished) fare with the same rules as the published version, just with discount

Dave