Windows 2000 SP4

I tried installing itunes 7.0.1 (I think thats what it is) and it says that I needed a new version of the Windows Installer. I did some sluthing and found that this installer came with the Windows 2000 Service Pack 4. Unfortunately, I was unable to come across a download of one of those. Could someone please send a link to me where I can download the SP4 for free?

Edit: Currently my OS is Windows 2000 Professional (not sure what service pack though)

Go to Windows Update and they'll guide you thru updates.

Here is a direct download link though:

http://www.softwarepatch.com/windows/windows2000sp4.html

http://www.microsoft.com/downloads/...FC-5F56-4A38-B838-DE776FD4138C&displaylang=en

there is just the installer, 3.0

Much Appreciated thanks! I'll get that up and running as soon as I do this 7 page english paper due tomorrow