Settle a bet will ye??

What is the correct way to string a bouzouki. I am aware of different tunings. I have looked at photos and other bouzoukis and some are strung like mine some are not. A friend says I am wrong but I don't know. Take GDAE tuning for example. My bouzouki is tuned:
Gg Dd AA EE

Where lower case is an octave lower than the upper case (??does that make sense??)

Is this correct?? or should it be?
gG dD AA EE

I am so confused my head is about to explode?

Will someone, anyone, please Please help me?? ;)

Mj
Bored out of my ceann