I had one of these show up on my sitemeter, too....

Something akin to this:

entry page: /data/thumbnailer/work/home-2006-10-30-19:47:27.178/
2006-10-31-15:57:51.626-in.html

exit page: /data/thumbnailer/work/home-2006-10-30-19:47:15.830/
2006-10-31-15:57:57.638-in.html

Interesting discussion about this here. Always astonishing to find out what goes on within the plumbing of the internets...those sneaky tubal trucks!