Instead, start with these troubleshooting questions:
1. Are you sure you attended I/O? :-)
2. Did you fill out the form at
http://wave.google.com/signups/io_signup.html more than a week ago?
3. Have you searched your email, *including your spam folder*, for a
message with the subject "Get Ready to Wave"?
If the answer to all of the above is yes, send the email address you
used to sign up for I/O to google-wave...@googlegroups.com.
We'll reply with more troubleshooting support from there.
If you didn't go to I/O, see
http://groups.google.com/group/google-wave-api/browse_thread/thread/cd613929d8034e22
to get help.