Creating a linearlayout with weights

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http://stackoverflow.com – Im trying to make something similar to this - Android Layout(User Interface) only I want to make the first column with a weight of 4 the second one with a weight of 2 (and also with two rows) and the last one with a weight of 1 (and also with three rows)...problem is It messes up itself (I copy and pasted the answer and changed everything according to my needs but it keeps on get messed up.. =) any help? (HowTos)