This is from the same site as the previous thread "Old News" but one quarter more recent:
http://spacescience.nasa.gov/osstech/jan-mar99.htm
Of particular interest is the topic below:
CONFERENCE ON ENABLING TECHNOLOGY AND REQUIRED SCIENTIFIC DEVELOPMENTS FOR INTERSTELLAR MISSIONS Building on the success of the breakthrough propulsion sessions at the 1999 Space Technology and Applications International Forum (STAIF), held February 1-4, 1999 in Albuquerque, NM, a conference on interstellar technology and science is planned for STAIF-2000. Session chairs include Les Johnson (MSFC), Sarah A. Gavit (JPL), Marc Millis (GRC), and others. The following sessions are planned within this conference:
For further information contact: Marc G. Millis, NASA GRC (216-977-7535)
Lee