Thanks-- that does indeed work. I also managed to find a tech note that says you can also change the DN in WebSphere to be blank, which will show all documents via LDAP as well.
http://www-10.lotus.com/ldd/nd6forum.nsf/0/7c6c218f00c777d485256d4b003765e0
http://www-1.ibm.com/support/docview.wss?rs=0&uid=swg21092442
Thanks for your help!