Try here: http://host-1.ghosteffects.com/poser/patch/patch.html Look at the files in the upgrade. Find the corresponding files in the existing version. Move them OR just rename the old ones by adding a "X" as the first letter of the name. Move the new ones in. If everything works - cool If not getting back is easy. The Curious version is probably only a problem if you are running a private network with multiple copies of one purchase. Its a cop not a spy. But its your choice.