You didn't get everything is what it sounds like, one end goes to the phone, the other to your Axim. Sounds like you just got half based on your description, drop them an email, call or fax, here is their info if you don't have it. They will handle it at once I can assure you based on past experience but it is very near 5PM there and I don't know how late they are open. And welcome to Aximsite!
email:
info@gomadic.com
Gomadic Corp.
12930 Cedar Glen Lane
Suite 250
Herndon, VA 20171
703.437.9319 (phone)
703.940.1130 (fax)