ISSUE SUMMARY:
I am not sure if there is a solution for both of my problems, however, I would like to prevent users from directly accessing pages without being logged in first. So if a users try to direct access the page it would redirect them to the main page for login.
The other problem is there a way to stop the www.yoursite.com/index.php?option=com_users&view=login page from being displayed or just display a 404 error when a user directly access it.

Hi,

that joomla default login needed if there is an issue with any joomla extensions. (just in case)
and reason you dont want using that default login?

for restriction guest user access, you can set jomsocial entry page at main menu item to registered access level.

Regards

sorry but I dont understand what you are saying...sorry

Hi,

simple say we cant replace default joomla login page: www.yoursite.com/index.php?option=com_users&view=login , that needed for joomla default login page.

Regards