How do i tune and play my 8 string ukulele thing i bought in the cook islands?

i like to buy instruments from different countries and i bought this in the cook islands and the man who sold it to me and made it said that it is a ukulele. but i can’t figure out how to play it and tune it. But i really want to:( please help me
Here is a picture:http://img129.imageshack.us/my.php?image=photo1ib6.jpg

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