Microsoft download KB951847 x86

cannot download the following: Microsoft .NET Framework 3.5 Service Pack 1 and .NET Framework 3.5 Family Update for .NET versions 2.0 through 3.5 (KB951847) x86.

I have Windows xp. Is this download for XP's or is it strictly for Windows Vista?

Why can't you download it?

Download details: .NET Framework 3.5 Service pack 1 (http://www.microsoft.com/downloads/details.aspx?FamilyId=AB99342F-5D1A-413D-8319-81DA479AB0D7&displaylang=en)

And the full download package is towards bottom of page

Many people cannot get this to install on XP for some reason, myself included no matter what tried