Show a Joomla login module only in a page
A recent dilemma we had was how to make it easier for users of a Joomla site to login, without having to use the Joomla Login module. Sometimes, the Login module can get lost within your content such that users might get confused, and you'd want to create a Login page which only contains the Login form.
This is the Joomla component which handles login / logout, and linking directly to will take you to a page which contains the Login Component. The Login module simply makes this component available through a Joomla module, to enable you to put a Login box.
In the Joomla 2.5 you simply link to the login page
DART Creations Login page: http://www.dart-creations.com/index.php?option=com_login
You can create the link in the menu, or somewhere which is very visible to make it easier for your users to login. Also note that clicking on this link when you are logged in, gives you the option to logout.