This blog has various update stories on the right hand side:
http://www.missingabducted.com/
This Times dispatch article says they are still looking at Fawley for this:
"law-enforcement source familiar with the case said the plate may have been in the possession of Ben Fawley, a 38-year-old amateur photographer and acquaintance of Behl's who was one of the last people to see her."
http://www.timesdispatch.com/servlet/Satellite?pagename=RTD/MGArticle/RTD_BasicArticle&c=MGArticle&cid=1031785347331
Yes, I've seen that site and that article.