Thanks to a member on Digitalspy
this is how you get to watch the live streaming....
if people are having trouble viewing the feeds then
1) Open RealPlayer 10 (or download if you havent)
2) Log in to the official big brother australia site using RealPlayer 10's web browser.
3) Once logged in, click on 'Live Cam' and choose HI or LO.
4) Wait a while and it should load up!
5) Then Just Watch Live Streaming