There's no 'Appearance' section in my settings

If any version of Internet Explorer prior to version 6.0 is installed on your computer, the Appearance section of your Google Talk settings will be disabled. Upgrading to Internet Explorer 6 or above before re-opening the Settings window will resolve this issue.

To upgrade to IE6, please visit:

http://www.microsoft.com/downloads/details.aspx?FamilyID=1e1550cb-5e5d-48f5-b02b-20b602228de6&DisplayLang=en