CFG files how to alter them?

[u-212]

hi all in a recent post i made http://www.subsim.com/radioroom/showthread.php?t=99108 i asked how to gain extra renown and was advised to alter the cfg file using note pad which i did. For some reason it just isnt working ive tried every method people have told me but as i say it just wont work, now if anyone has the time would they kindly give me an example of exactly which bits to alter because basically im useless and cant do it. Another thing i have SH3 commander mod installed would this be affecting my attempts to alter the files?

thanks for the replys in advance from a completley confused U-212