they have arrived!!
with many more workers than I expected, 5 and a small pile of eggs.
I will keep you up-to date and see if i can upload some good pics.
Update:
they have explored most of the foraging area and have dragged a small cricket into the test tube.
the queen has also ventured to the edge of test tube before returning quickly.
also so one of the workers has been injured, possibly in postage. it's gaster is a bit squashed.
Update:
two workers have now entered the y-tong nest.
the temperature in the tank is 27C
and now the ants have moved the egg pile in

Update 21/04/2011:
the ants have blocked up the entrance to the y-tong and have dragged in another cricket.
luckily the worker with the damaged abdomen can still feed on honey
I think just part of the exoskeleton has come off.
the queen and brood have moved down on to the bottom chamber and seem to be doing OK.
i am heating these ants by putting a 7 watt heat mat against the glass where the nest is.
there are now two small larvea