There should not be any problems duplicating gold in the 1.47 patch. I just tried it successfully, and nobody has reported a similar problem (that I recall) using basically this same procedure to replace lost quest items (
Inventory files).
Are you sure you are just copying the 6 inv.* files? Try going into the second game folder and deleting or moving these files first, so no files should be overwritten copying files from the first save.
There should not be any difference between copy-and-pasting and drag-and-dropping files, though you do get a little more feedback with the latter. If you are using hotkeys to copy and paste, a mistyped copy attempt might have you pasting the wrong files, though that probably wouldn't happen twice, and probably not at all if you are using toolbar icons or the right click context menu to copy and paste.
There is a different cheat for gold, though more technical. I have not tried this since the 1.47 patch, so there may have been changes made to the file structure (though if so, they would probably be minor).
Hex editing - gold, experience, stat/skill pointsWelcome to the forum. <img src="/ubbthreads/images/graemlins/wave.gif" alt="" />
BTW, if you edit your other post, there is a 'delete this post' button beside the 'change this post' button, which will also remove the topic, as long as nobody replies to it (your post count will not drop, though).