How do I get a copy of ISO 10646 that is equivalent to Unicode 2.1?
Unicode 2.1 has the same character repertoire as ISO/IEC 10646-1:1993, and and already incorporates all the Amendments through Amendment 7 to 10646-1, plus any relevant information from Technical Corrigenda #1 and #2 to 10646-1. You can order direct from ISO Central Secretariat (at http://www.iso.ch) for a total of 648,50 CHF, or in the U.S. from ANSI (at http://webstore.ansi.org) for a total of $585 USD for the standard plus Amendments 1-7. Then download Technical Corrigenda #1 and #2 off the SC2 website by contacting the SC2/WG2 convener at the address provided via http://www.iso.ch/meme/JTC1SC2.html.