thanks for all your helpful comments.
my plan now is to stay overnight before taking the first flight out.
re the oneworld bus - the description on the onworld site made it look like an airside bus.
update: as a last ditch attempt, i tried to ask them if the award ticket could be put in the same booking as the paid ticket - the answer was "no". also, they said they could not ticket the award for me anyway because the minimum connection time is 2.5 hours.
[This message has been edited by epigram (edited 05-04-2002).]