Post installation

I have a taxonomy category "Author" and many terms ("Dickens", "Shakespeare", "Milton", etc, etc).

When viewing a node belonging to a term ("Shakespeare") from this specific category ... I want to list all other nodes belonging to that term in a block. How can I do this?

How can I hide some blocks for unauthorized users? I need to have some "private" block, that are displayed only for logged (authorized) users. Thanks.

i want to modify Login box look..tried style.css file..couldn't find it

can someone show me how and where to edit?

Some time ago I installed a 4.4 version of Drupal for a professor. It was working fine. Then the IT department at the university recently changed the names and passwords of the associated database as part of server upgrades. They actually went in and changed the user name and password for the conf.php file but when I try to access the site I am getting an "Internal Server Error". The URL hasn't changed. Is there anything else that should be reconfigured? One of the tech support people has said that it appears the the .htaccess files don't appear to be working correctly.

Been getting this spam all day..

page not found Jan 5 2006 - 7:02am user/user/user/user/user/user/user/user/blog/user/user/user/ Anonymous

Does anyone know what this is?

So I installed the customerror.module file into the modules folder and activated the module under admin/modules. Now when I click over to settings/customerror all that shows up is the word "Array" and the Save Configuration and Reset Configuration files.

I was unable to determine where I should pu the common.inc file. I thought it was used to replace the existing common.inc but that caused my site to a grinding halt.

Thanks for any input or advice you may have.