Awhile back, I began uploading texts to archive.org for both backup purposes and to lighten the load on the site a little.
However, all materials are still available from this site. You simply need to use the LocalContent page as opposed to the Content page. For instance, for Cantonese you would use:
http://www.fsi-language-courses.org/LocalContent.php?page=CantoneseSorry for the trouble,
-VP