To begin filing you tax return using TurboTax Online, you can visit this link here and select the product that best meets your tax needs. You would then create your account by setting up a User ID and password. Once you have your account set up the TurboTax program will guide you through the tax interview to ensure that your return is filed accurately.
If you choose you can purchase the TurboTax CD/Download software by visiting this link here. With this option you can purchase the CD/Download for your computer.
Please reply below it you have any additional questions.