You will not be able to install iTunes 8 on a WIndows 2000 machine. The last version compatible with WIndows 2000 is 7.3.
http://www.apple.com/support/downloads/itunes732forwindows2000.html
If you have msi problems with installing this here is a clean up method. When installing iTunes, use the 7.3 installer and let it install QUicktime rather than installing Quicktime separately. The latest Quicktime does not list 2000 as a compatible OS so it may not install.
== uninstall with cleanup ==
Download a fresh copy of iTunes and the stand alone version of Quicktime (the one without iTunes)
http://www.apple.com/quicktime/download/win.html
http://www.apple.com/itunes/download/
Download and install Microsoft Installer cleanup utility, there are instructions on the page as well as the download. Note that what you download is the installer not the program – you have to run it to install the program. The installer doesn't give any message to confirm the installation.
http://support.microsoft.com/kb/290301/
(To run the program – All Programs>>Windows Install)
Now use the following method to remove iTunes and its components:
XP
http://support.apple.com/kb/HT1925
Vista
http://support.apple.com/kb/HT1923
*If you hit a problem with one of the uninstalls don't worry*, carry on with the deleting of files and folders as directed in the method.
When you get to deleting Quicktime files in the system32 folder as advised in the method, you can delete any file or folder with Quicktime in the name.
Restart your PC.
Run the Microsoft Installer Cleanup Utility. (Start > All Programs > Windows Install Clean Up)
Remove any references you find to the programs you removed - strictly speaking you only need to worry about those programs where the uninstall failed.
If you don’t see an entry for one of the programs that did
not uninstall, look out for blank entries or numeric entries that look like version numbers e.g. 7.x for Quicktime or 1.x for Bonjour.
restart your PC
Install the stand alone Quicktime and check that it works.
If it does, install iTunes.
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