You have to use this link. It takes you to the Bank of American Turbo Tax website. You don't have to have an account with Bank of America. Most banks or credit unions offer only 15%-25% off. The 35% off is good for all versions (if I did my math correctly). You don't get the software in the mail. You do everything online. Next year when you do your taxes via online all this year's info will automatically be imported.
If you only use the 1040EZ or have basic taxes you can probably do your taxes for free online through the IRS or the other tax companies and software companies own websites.