WordPress Site Hacked – Now all pages redirect to Password Prompt

My Website (www.nacurh.org) was recently “hijacked by shell”. Luckily I was able to restore the site and everything else looks fine. After the site was hacked I noticed that any link you click on redirects you to a simple password prompt page with nothing else on it (not even wordpress headers). The database remains in tact but I can’t figure out what is making the pages redirect there.

After I noticed this I upgraded from 3.0 to 3.0.4 but it didn’t help. Any ideas?