This can be a little confusing,
The file will be simply shown as "baldur", but will be conspicuous by the little cog icon in its bottom right corner. if you right click on this file and view its properties it should reveal it as the baldur.ini file.
I hope this is of use.
PS Check out this website
http://www.tgeweb.com/ironworks/bald...2/cheats.shtml this site will give you all the possible cheats and how to use them !!!