First only integrate only one Internet Explorer. You don't need to have ALL the updates, just the LATEST updates. The reason some of the updates are no longer in a source is because they have been 'superseded' and the old one is no longer required. I just tend to use Windows Hotfix Downloader updates and that's pretty much it. You can also just use RicaNeaga's source. As long as the source has been updated recently, you only need 1.