LHR-SYD - why no mention of HGK stopovers anymore?

Been looking again at prices, times etc for London to Sydney flights and up to a month or so ago, going through the Virgin Atlantic website always used to ask if you wanted a stopover in Hong Kong either or both ways.
Now it just gives you direct flights with no option to stopover for a few days. Do they still do this or do you have to book separate flights now eg LHR-HGK, HGK-SYD, SYD-LHR

Ive just done a search for Sept. 25th - Oct 25th in Econ. Lowest and it comes up with the stopover option.

Dom.

[mitchja]

I've also just tried and it has given me the stop-over option in HKG as well.

Regards

Special Fare?

Ah, found out what's wrong. If you select flexible dates, it doesn't give you the option, but if you want the particular day you've chose, it gives you the stopover choice.