Will try to post the write-up the next week.
Regarding the 2nd part, I assume you're referring to thumbnails ("Folder pictures" option in folder properties). If your settings are not saved, try resetting folder views and clearing the thumbnail cache using Cleanmgr.exe. Alternatively, you may drop your post image in that folder's root and name the poster image file folder.jpg or folder.gif. It will be used as the folder thumbnail. After doing the above, you need to click "Restore Default" in the folder properties.