Add a new account with the wizard. Purposedly type @gmail.com instead of @wfu.edu so it will automatically setup the servers' addresses and ports.
It will failed authentication, your email address is wrong, so it is ok, manual setup it up to continue create the account.
In Account setting, change the three places (email address, IMAP server username, SMTP username) @gmail.com back to @wfu.edu
everything should work afterwards.
add lihgtning from its project webpage, or Thunderbird's what's new page.
add your calendar
username is email@example.com