GAIM is complaining about not having SSL, which means I can't use MSN. But the Drexel servers use SSL, and I can connect fine with Thunderbird. I also tried recompiling GAIM with [the below] like gaim.sf.net/faq-ssl.php says, but no luck...
./configure --with-nss-includes=/usr/include/mozilla-1.4/nss \
--with-nspr-includes=/usr/include/mozilla-1.4/nspr \
--with-nss-libs=/usr/lib/mozilla-1.4 \
--with-nspr-libs=/usr/lib/mozilla-1.4