Whydoineed

I'm currently trying to update my line 6 G10 firmware with the line 6 updater, download advice followed on an MacBook air with up to date software, when trying to install the updater, i am directed to search the app store, and then am informed the app is not available in my country. (australia) have not found an answer in half a day of searching, anyone got any ideas apart from moving country.... cheers, tim