Please enter the e-mail address for your account. A verification token will be sent to you. Once you have received the token, you will be able to choose a new password for your account.
Joomla.org is an invaluable resource for general instructions and information on how to use, configure and modify Joomla.
More extensive details of the Gantry Framework, inclusive of both written and video tutorials, please visit the dedicated Gantry Site.