Because of the long link that microsoft used for their pages some people had problems clicking on the link and would have had to copy and paste the entire link into the browser for it to work...so, this page was made to give you a short link to the patches.
Most people that are using XP Home/Pro need to download the "XP 32bit" version.
Everyone that has XP/home/pro/gold/Whistler or NT/2000/pro HAS to update this patch or you will have problems.