Something tells me that the additional "Array" text may have something to do with the auspost_improved_1.5.1 module files. When I looked at the shipping details on the confirmation page, I noticed that there is two closing brackets
at the end of two shipping detail lines but only one opening bracket? Maybe there is a statement somewhere that is not closed properly?

If anybody has some ideas about where might be the best place to start looking, please fire away..... I have checked the confirmation and shipping pages and every peice of code looks to be in order. But that doesn't mean it's not.

It's very strange because I would have thought if there was a statement in the code that wasn't closed properly that I would see some php errors in the site somewhere!.....

Steve