Don't forget that the Wayback Machine has archived lots [and LOTS] of old sites. You can still find Jan's site easily:

1. Go to web.archive.org
2. Type users.telenet.be/jbruyndonckx/kilt_making.html [or whatever URL you're looking for] after the protocol in the search field.
3. Click Take Me Back.
4. Click a date when you think the site had the info you want. I picked June 9 2007 on a whim. If you select a date when the info was removed, just click backwards and select an earlier date.