Registration in 2006 International Conference on Computational Science is compulsory for at least one of the authors of the accepted papers. The registration will open in March 2006. You should check at:
http://www.iccs-meeting.org/iccs2006/index.html
Note also that the registration for the workshop is actually the
registration for the whole ICCS'2006 conference. Therefore, you will
have free access to all the workshops and activities related to this
general conference.
Finally, note that the workshop chairs are only responsible
for all the academic aspects of the papers (including the submission,
reviewing and final selection, among others). For questions about
registration,
lodging, visa, flights, or any other question, please contact ICCS'2006 organizers.