“Bad Link ” To Error Please Help !

I am new to WP, and also just updated to 2.9.1

I think my problem is Permalink related…

I have been receiving MANY e-mails like this :

subject : Bad Link To

“A user tried to go to … and received a 404 (page not found) error. It wasn’t their fault, so try fixing it. “

I have added the following to the .htaccess file :

<IfModule mod_rewrite.c>
RewriteEngine On
RewriteBase /gay_porn_blog/
RewriteCond %{REQUEST_FILENAME} !-f
RewriteCond %{REQUEST_FILENAME} !-d
RewriteRule . /gay_porn_blog/index.php [L]
</IfModule>

and I am trying to use this kind of link structure :

/%year%/%category%/%postname%/

in the Custom Structure window…

and yet I am receiving a huge amount of e-mail concerning links that should never existed from the beginning…

Can anyone please help ?

best wishes,

clueless