Have you looked at your actual report or just the score? The reason I'm asking is that while a lot of us who were also affected by the score drop have had our scores restored, when we look at our actual updated report, Sallie Mae's "fix" has caused a double-reporting of our accounts, making it look like we have twice the amount of debt that we actually do. There's another thread on the forum somewhere where people are talking about this. In that thread, the moderator says that Sallie Mae has been notified about this latest issue so hopefully this will be corrected soon.
http://blogs.creditcards.com/2008/05/sallie-mae-equifax-credit-report.php