DLink Firmware (moved from hardware)

Hi All

I have DLink Router DSL-502T, orginial it come with an EU Firmware version "V1.00B02T02.EU.20040823",
Recently i upgrade it to new EU Firmware "V2.00B01T01.EU.20050608", its very nice, but has some small bugs i think
but i read alot about the features and bug fixed in the AU Firmwares, i checked for a newer version of EU but no new.

So i want to know, if i upgrade my current EU Firmware to the latest AU Firmware
Is it will work correctly or i will have problems cuz i don't live in Australia?

Thanks alot