I'm guessing that the SP3 release has messed up the HotFix process.
I had to request an XP HotFix from Microsoft this week. I'd requested the same HotFix from Microsoft a month ago without incident. But now I need it again, since Microsoft date-limits its HotfFixe downloads.
MS sent the link (which now takes several hours since it's been "automated"), but when I went to download the patch, the MS download server says, "File Not Found". I see that the path for the HotFix includes the subfolder "SP3". I'm thinking that MS has removed the Hotfixes that have been included in SP3, now that SP3 has RTM'd.