Plutonium

Hello, i need help, sorry if my english its not so good, im gona try to explain the best way.
I downloaded, all what i needed to play bo2, first of all, i have to pc, in one of them it works perfectly, the problem is the other, when y select setup to choose the folder for the game, i choose the right folder, i click on save, and than it dosnt happen nothing, itt says i need to setup again, no error window, or something, its like he dosn t whant to work, i tryed all, downloading all again, eliminate config.jsl from plutonum, lool for the right folder etc, and i dont know what to do, pls help