Thanks Vla who has told me that the link for Dutch Windows XP Service Pack 1 has just become available, 10 minutes ago.
Additionally Dutch visitors can also choose to get the Service Pack sent on CD for free. You can choose between the Dutch version and the English, I already ordered my English SP1 order yours today.
The English version doesn't seem to be limited to a country, so give it a whirl for a free SP1 CD.
Download: Windows XP Service Pack 1 (SP1) Dutch
View: Order Windows XP Service Pack 1 (SP1) on CD (Dutch)
View: Order Windows XP Service Pack 1 (SP1) on CD (English)