I was just coming here to ask...that sucks; I really liked that site. According to this,"If your blog is a free blogspot blog, its files will be deleted and will no longer appear online." Doesn't sound good, but doesn't say anything about restoring from a backup(which I would hope they'd have). I guess you already tried their contact page.

Worst case scenario if it's gone and you don't have backups on your own computer, you can try the Google Caches and recover your posts that way. Good luck....