Booking query

Howdy everyone,
I'm trying to book a flight to Sydney from LHR with a stopover both ways in HKG for a few days.
So one way of doing this is to book a return from LHR / HKG / LHR and then a return from HKG / SYD / HKG. Quite expensive.
However, I've stuck the four individual legs, i.e. LHR / HKG, HKG / SYD, SYD / HKG, HKG / LHR into Kayak.com and for the dates I want to travel it's come up with a much much lower quote than booking those two returns would be (around £1100).
Unfortunately on Kayak it doesn't let me go straight from the quote to Virgin, I have to go to Virgin and input it. Which is where the problem is, as the only option I can see to do this only allows two flights, cf.
http://www.virgin-atlantic.com/en/us/bo ... dView=true
Any ideas on how to book it?
Thanks!
B
I'm trying to book a flight to Sydney from LHR with a stopover both ways in HKG for a few days.
So one way of doing this is to book a return from LHR / HKG / LHR and then a return from HKG / SYD / HKG. Quite expensive.
However, I've stuck the four individual legs, i.e. LHR / HKG, HKG / SYD, SYD / HKG, HKG / LHR into Kayak.com and for the dates I want to travel it's come up with a much much lower quote than booking those two returns would be (around £1100).
Unfortunately on Kayak it doesn't let me go straight from the quote to Virgin, I have to go to Virgin and input it. Which is where the problem is, as the only option I can see to do this only allows two flights, cf.
http://www.virgin-atlantic.com/en/us/bo ... dView=true
Any ideas on how to book it?
Thanks!
B