Music moved from hardrive A to Harddrive B can't be found by iTunes

Question

A Windows techie moved my music library from Acer "C" harddisk to "D" data disk to "speed up" my computer. The music seems to be there, but iTunes says.."original file could not be found. Would you like to find it?" "D" disk has a "Music" file with all the song names, as if the music is there, but I do not know how to get iTunes to understand and hook up to the new music location. Can anyone give a step-by-step (literally) so iTunes can find and play the music again? Unfortunately, only a step-by-step can help this dummy. Thx

Answer 1

Is this the method you followed for moving your music to the extrenal disk?
http://docs.info.apple.com/article.html?artnum=301748
If this is the case you should have your iTunes folder containing iTunes Library.itl in My Music on your C: drive - this is the database iTunes keeps about your music.
You should have an iTunes Music folder containing your music files on the external drive, and when you go into Edit>>Preferences>>Advanced>>General, the location of the iTunes Music folder should be set to the external drive -something like x:\iTunes Music.
If this is so, what you say doesn't quite make sense because iTunes saves downloaded music in the designated iTunes Music folder which is on your external drive not your c: drive.
Does the article describe what you did, or did you do something else for example copy the entire iTunes folder onto the external drive?
It is important that I understand exactly what you did if I am to help.
One general point about external drive, you must always ensure that it is plugged in when you start iTunes, or iTunes will default back to the internal drive.