How to register for online homework for new users of Mathzone. This will take about 10 minutes.

You'll need a Student section code that your instructor will announce in class and a Mathzone registration code that comes with most new textbooks or can be purchased separately online or in the bookstore (I think it is cheaper online).
Go to http://www.mathzone.com/
Click "Students" under "New users register here".
Enter your Student section code that your instructor gave you in class.  This will place you in the right course and section.  Click "Submit".
Enter your Mathzone registration code and your email address.  
Fill in the requested information to create your Mathzone account. 
Your registration will be confirmed and you'll have the option to access the site.