I have reinstalled my laptop recently, having previously simply copied entire contents of it to another computer. After reinstalling iTunes, a question came up: how to move all the preferences, files, library settings, album artwork - all of it back into iTunes? On Windows, it consists of three steps:
Copy C:\Documents and Settings\USERNAME\Application Data\Apple Computer\iTunes\ into the identical folder in new install
Copy C:\Documents and Settings\USERNAME\Local Settings\Application Data\Apple Computer\iTunes\ into the identical folder in new install
Copy entire contents of old C:\Documents and Settings\USERNAME\My Documents\My Music\iTunes\ into the identical folder in new install
And that should be it.
Now I have to figure out how to move all the artworks into the files them self, not keeping them into: C:\Documents and Settings\aleck\My Documents\My Music\iTunes\Album Artwork\ where iTunes saves them. I really wish Apple would start to respect MP3 ID tags properly. :(