Joomla 1.5 is pretty good for making sites. There is one pretty major bug, though, that needs to be fixed.
If you go to the plugin manager, at [or near] the top, you'll see something like "Joomla -- Authentication". NEVER change the "published" to false. Otherwise you'll be locked out, because you disabled logging in!
If you do happen to have this happen, then don't worry. All you have to do is edit the database. I recommend using phpMyAdmin, but you can do the raw SQL too, if you want.
So start up phpMyAdmin, and find the joomla database. It usually has 'jo' in the name somewhere. Then go to the 'jos_plugins' table, and go into browse mode. Find the "Authentication - Joomla" field, and edit it. Scroll down [if necessary] to the publish field. Change it to 1. Save.
Now you can login!
