Head to the Settings area of your account to set the ownership for your content. http://my.blogtalkradio.com/user/settings.aspx
You can get to your Settings by going to the drop-down menu at the upper right of your screen.
From there, look below the Profile tab to locate the Authorship/Contact Info section. The fields here are where you enter your information. Don’t forget to click the Save Settings button at the bottom of the page to save your changes.