Sitemaker is a third party application and is separate from your hosting account.

If you have not already, to use SiteMaker, you will need to click on signup to create a sitemaker id and make sure to check the box for the 30 day trial (checked by default).

When you are ready to publish, open a Support Ticket with the following details and we will activate the SiteMaker account:
Sitemaker ID
Domain Name
FTP Password