Is this sudoku, how do i do this? [10 points if i get answer after an hour!]

http://oi51.tinypic.com/rr79e0.jpg

Help D:

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This is sudoku, but the smaller version. The usual version is 9X9. The objective of this game is to have the number 1-9 down and across each collumn, and in the solid boxes. There can't be any repeats in the numbers and I think there is more than one way to solve it. haha I love sudoku!

Yes. The numbers in the lines and in the "boxes" are the digits 1, 2, 3, 4, 5, 6.

So: solution:
2 5 4 3 1 6
3 1 6 2 5 4
5 3 1 6 4 2
4 6 2 1 3 5
1 2 5 4 6 3
6 4 3 5 2 1

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We will answer in an hour