The MySQL website has a complete reference manual with search capabilities available on their website: http://dev.mysql.com/doc/ . The manual covers everything from basic installation, SQL syntax, to advanced usage like replication and clustering. Additionally there are translations of the reference manual in German, French, Japanese, Portuguese, and Russian available as well.
Use cPanel from your Pakish client area for day-to-day management. Menu names may vary slightly by server version.
Need account-specific help? Open a support ticket from your PaKish client area and include your domain name and a short description of the issue.