When the site is first created Web Presence Builder will create a generic description and key words for the site based on the template you initially selected. You can edit this information under the 'Setting' menu. Once a website is published for the first time the meta data is applied to each page individually, to edit the meta data you will then have to click on 'Pages' menu and select a page to edit. On the right you will see 'Edit page description and keywords'. Click this to edit the description and key words for each page. Make your changes, save and publish. The details will be updated immediately however it may take some time for google to pick up the changes.
