That would be a question for Ultima. I have a Reseller package so I'm not sure if scheduled tasks are exclusive to Reseller packages or not.
Nevertheless, you should also be able to manually make a backup of the DB via DNP:
On the list of databases, click the DB you want to backup, then expand the "Maintenance Tools" and click Backup. You will then be prompted for a filename and the option to download the backup immediately via HTTP or to copy the backup to a folder on your hosting plan.
William Eaton, MCSE
iTech Computer Solutions, LLC
www.itechcs.com