No, Yahoo! Web Hosting does not include the Adobe program Dreamweaver. Although you can use it with your Web Hosting plan, Dreamweaver and other third-party software must be purchased separately from Yahoo! Web Hosting. To purchase your own copy of Dreamweaver, visit Yahoo! Shopping.
NOTE: If you are on the Yahoo! Web Hosting Basic plan, you do not have the option of using Dreamweaver or any other third party tools. For more details, one what each plan has to offer, please visit the the Yahoo! Small Business homepage.