If actual map makers would want to update that tutorial I wouldn't mind actually, but if you don't want to have your chat text logged (it doesn't matter if it's there or not) you simply turn off chat channels while you map, or alternatively you can maybe use the log cleaner which you can download on this site, although I haven't used that.
Also there is already an in progress version of the Manor
here, although I'm not sure if that has been abandoned and unfortunately no log was posted.