Whew, finally!
Now, i could have sworn that
slight dominos puzzle spoiler
http://img64.imageshack.us/img64/5066/dominos1.jpg
is the same as
http://img3.imageshack.us/img3/5141/dominos2y.jpg
just the other way around, but obviosly not as i managed to find the solution only by following the latter
yeah, my math sucks