. You can download the individual hotfixes, but I have learned the hard way that the order in which they are installed is important. You would have to write down that order as they are being installed. In the C:\WINDOWS directory you will find blue (compressed) folders that hold all the old pieces of XP that were replaced by updates. The code number of each hotfix is embedded in each folder name ($NtUninstallKBnnnnnn$). This way you can determine exactly which ones were installed. The "KBnnnnnn" part is the update file name.
Remember that each PC will have its own unique set of updates depending on its hardware and software that in it. I also found (the hard way, too) that installing updates that are not needed has a bad effect on the system.
Here's where you can download the individual updates/hotfixes/patches:http://www.softwarepatch.com/windows/index.htmlhttp://www.ryanvm.net/msfn/updatepack.html
Downloading 75+ hotfixes will be extremely tedious. You would also probablygo cross-eyed reading all those 6-digit KB numbers. You might be able to take a shortcut by downloading this package. I wouldn't install this package automatically because I heard that it causes problems. Get individual hotfixes from it.http://www.softpedia.com/progDownload/Ryan...load-22694.html
Here's the official MS list of hotfixes (Knowlege Base articles):http://www.microsoft.com/technet/security/current.aspx