Hi guys . i just want to ask some help about how to solve 2x2x3 aka Tower cube , i mess mine cause i taught i could solve it like domino, any one could help me how to solve the the Top , middle and bottom layer, using simple algo ..?

The decision 2x2x3:
1. The top side 2x2 (is absolute without algorithms);
2. Bottom side 2x2 (maximum 1 algorithm - 3-cycle or rearrangement of two elements);
3. Average layer (1 or 4 turns).

Look also here.

I don't know if you still need help, here are 2 simple algs you probably already know:

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1. Make top & bottom same colour.
2. Corner swap (horizontal) /U/U'/ y' /U'/U/ places all top & bottom layer corners.
3. Hold cube sideways (R2 U2)X3 switches centres.
You knew them already from the domino didn't you?
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That's not a fast method, the method I use is quicker, It's one of my favourite little cubes.
Burgo.