Here is the Cartes du Ciel map of McNaught in 4 weeks time from Melbourne.
This shows the comet at 11:30 p.m. on the 25th Feb 2007. Quite high in the South. I wound it back 2 hours to 9:30 p.m.and it was level with halfway between the horizon and the SCP.
It will be circumpolar.
Looking good!