WinXP service pack install failure

Hello,

Just bought Parallels and am running it on Mountain Lion with WinXP installed. I try to install service packs and updates for XP and get the following message, shown in the image linked to below. It won't display the page. I even upgraded to IE 8 to see if that would solve the problem but no go...

http://www.evernote.com/shard/s3/sh...762a49250f25/5272d4279028693d583c204367a50a6a