Please refer to the main conference website (EUC-09) for registration (http://cse.stfx.ca/~euc09/register-instruction.htm). In particular, if your paper ID in the accepted papers list is e.g. TrustCom09-168, please use the conference name as "TrustCom09", then fill in "168" as the paper ID on the registration form. Any incorrect use will lead to the registration failure.