Originally Posted by
CPMaverick
Another option is to transfer your points to Krisflyer, buy Singapore tickets, and upgrade using Krisflyer points. I don't know how easy that is or how many points are required, you may have to go to the Krisflyer forum to find out.
Hardly worth it. You can only upgrade one class, so would have to buy Premium Economy in order to get to Business, AFAIK. There are a lot of tips on the PointHacks AU site that the OP may find useful