Johnathon Suker <email@example.com> commented that my technique of copying new System Folder files over the old ones and then moving them all back again could lead to trouble if some old and unnecessary System Update file or something similar was included by this process. I should have mentioned that I always go through the resulting folders and manually scan for files I know won't work with the new System. A slower method might involve opening both the old and the new folders and manually moving (from the old to the new) just non-Apple files that you know will work. [ACE]
Find Graphics in TextEdit .rtfd Files
Want to find the graphics in a TextEdit document in the .rtfd format? The document is actually a package - a special kind of folder that looks like a file. To see and extract just the graphics, Control-click the document and choose Show Package Contents. A new window opens showing you just the embedded images, along with a TXT.RTF file that contains the text of the file.