The Humminbird web site may not have all of the things in place to show the HumminbirdPC program for the new units yet. So I would call Humminbird Customer Resource folks (1-800-633-1468) and ask that they e-mail you the HumminbirdPC program. Calling will get it to you sooner as it is the week of Thanksgiving and I would bet that some of these folks are on vacation (I am!) and so inquiring by e-mail may cause additional delay. If they cannot e-mail you the program (many times the attached file will get stripped or the message get blocked as spam or a virus), ask them to give you a serial number to anothe model unit that you could register just to be able to download the HumminbirdPC program.
Greg Walters at Humminbird