It's okay, don't panic. We're going through some reorganizations right now and your survey isn't gone, just moved. They are now sorted into the country and, under that, the institution to which you belong. Note that for all of the surveys other than those from Mines, we did not know where to put them, so check the "Unknown" country and "Unknown" institution if you can't find yours.
If you think that your surveys are listed in the wrong place, like under Unknown, you can edit all of the information associated with your account by going to any one of your surveys, logging in, clicking the Preferences button, and changing the information.