Registration in 2005 International Conference on Computational Science is compulsory for at least one of the authors of the accepted papers. The registration will open in March 2005. You should check at:
http://conferences.mathcs.emory.edu/iccs2005/registration.html
Note also that the registration for the workshop is actually the registration for the whole ICCS'2005 conference. Therefore, you will have free access to all the workshops and activities related to this general conference. In addition, the whole set of proceedings will be included in the conference fees.
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'2005 organizers.