Thanks Keith.
The primary domain (nystrom.cl) does not have a website … it just redirects to the blog. My wordpress setup points to the blog folder (fitidbits.nystrom.cl). From what I can see all files except one ( error_log in the wp-admin folder) are older in the root than in the blog folder. However, the error_log file has a current timestamp and is apparently updated currently. Probably the root installation should be removed but considering the error_log file I’m afraid I will break something if I just remove all wordpress files.