Yes, I tried the m.facebook.com site as well. But, interestingly there are 3 fields offered to sign in at the mobile site - none of which on the 8820 are labeled. So, I assumed that the first field is for ID and the second two are for password a redundant entry for password check. I get the same error despite what I enter, so you may be right that the FB site is just blocked by my employer. Just wanted to check to see if I was doing something wrong.

Thanks!