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1) A list of your categories can be found by going to the Dashboard, then drop down the Posts menu and select categories.  These are the headings you put between the <br><h3>Category Name</h3> in the php below.

2) Category numbers had to be dug out of my database.  I used MySQL Admin, went to my WordPress database.  Select your database, find the wp_terms table and click on the leftmost icon under ‘Action’ to list your tags and categories. The link_id is the category number.

3) PHP code copy and paste this to a file named Archives.php.  Change the category names and numbers to match those on your website.  Also add or delete as many categories as you need. Your template is likely different than mine you may need to adjust the sidebar, footer etc to match your template’s style

4) showposts=200 is the maximum number of posts it will show in that category, adjust if you need to.

<?php
/*
Template Name: Archives
*/
?>

<?php get_header(); ?>

<div id=”content”>

<h2>Archives</h2>

<div>

<p>Complete archive of the blog’s posts sorted by category</p>

<br><h3>Fun things to do in Houston</h3>
<?php query_posts(‘cat=5&showposts=200′); ?>
<?php while (have_posts()): the_post(); ?>
<li><a href=”<?php the_permalink() ?>”><?php the_title(); ?></a></li>
<?php endwhile; ?>

<br><h3>OMG We’re in Texas</h3>
<?php query_posts(‘cat=7&showposts=200′); ?>
<?php while (have_posts()): the_post(); ?>
<li><a href=”<?php the_permalink() ?>”><?php the_title(); ?></a></li>
<?php endwhile; ?>

<br><h3>The Move</h3>
<?php query_posts(‘cat=15&showposts=200′); ?>
<?php while (have_posts()): the_post(); ?>
<li><a href=”<?php the_permalink() ?>”><?php the_title(); ?></a></li>
<?php endwhile; ?>

<br><h3>This ‘n That</h3>
<?php query_posts(‘cat=14&showposts=200′); ?>
<?php while (have_posts()): the_post(); ?>
<li><a href=”<?php the_permalink() ?>”><?php the_title(); ?></a></li>
<?php endwhile; ?>

<br><h3>Tokyo Trip</h3>
<?php query_posts(‘cat=172&showposts=200′); ?>
<?php while (have_posts()): the_post(); ?>
<li><a href=”<?php the_permalink() ?>”><?php the_title(); ?></a></li>
<?php endwhile; ?>

<br><h3>Geekiness</h3>
<?php query_posts(‘cat=83&showposts=200′); ?>
<?php while (have_posts()): the_post(); ?>
<li><a href=”<?php the_permalink() ?>”><?php the_title(); ?></a></li>
<?php endwhile; ?>

<br><h3>Photos</h3>
<?php query_posts(‘cat=10&showposts=200′); ?>
<?php while (have_posts()): the_post(); ?>
<li><a href=”<?php the_permalink() ?>”><?php the_title(); ?></a></li>
<?php endwhile; ?>

</div>
</div>

<?php get_sidebar(); ?>
<?php get_footer(); ?>

5) Upload your archives.php file to your theme directory on your webserver.

6) Finally create a new page – drop down the attributes menu on the right and select archives as your template

Or if you’d rather there’s a new plugin out to do display all posts in all categories for you James Wilkes Web Design

Your .htaccess file provides better coverage and is more efficient. I realize not everyone has access to .htaccess and that is why bot blocker, security plugin and other security plugins exist. But if you have access to .htaccess that is where you should be doing your security.

This will not stop all bots but should slow them down quite a bit.

Improved .htaccess file

^ – starts with
$ – ends with

———————————————————————————
# block known trouble makers dumb enough to
# announce who they are
SetEnvIfNoCase User-Agent “^EmailSiphon” bad_bot
SetEnvIfNoCase User-Agent “^EmailWolf” bad_bot
SetEnvIfNoCase User-Agent “^ExtractorPro” bad_bot
SetEnvIfNoCase User-Agent “^CherryPicker” bad_bot
SetEnvIfNoCase User-Agent “^NICErsPRO” bad_bot
SetEnvIfNoCase User-Agent “^Teleport” bad_bot
SetEnvIfNoCase User-Agent “^EmailCollector” bad_bot
SetEnvIfNoCase User-Agent “^LinkWalker” bad_bot
SetEnvIfNoCase User-Agent “^Zeus” bad_bot
SetEnvIfNoCase User-Agent “^botpaidtoclick” bad_bot
SetEnvIfNoCase User-Agent “^Click Bot” bad_bot
SetEnvIfNoCase User-Agent “^WebRipper” bad_bot
SetEnvIfNoCase User-Agent “^Wget” bad_bot
SetEnvIfNoCase User-Agent “^Snoopy” bad_bot
SetEnvIfNoCase User-Agent “^Security Kol” bad_bot
SetEnvIfNoCase User-Agent “^libwww-perl” bad_bot
SetEnvIfNoCase User-Agent “^Java” bad_bot
SetEnvIfNoCase User-Agent “^DataCha0s” bad_bot
SetEnvIfNoCase User-Agent “^Grazer” bad_bot
SetEnvIfNoCase User-Agent “^lwp-request” bad_bot
SetEnvIfNoCase User-Agent “^lwp-trivial” bad_bot
SetEnvIfNoCase User-Agent “^Morpheus” bad_bot
SetEnvIfNoCase User-Agent “^Site Sniper” bad_bot
SetEnvIfNoCase User-Agent “^Winnie Poh” bad_bot
SetEnvIfNoCase User-Agent “^curl” bad_bot
SetEnvIfNoCase User-Agent “^Akregator” bad_bot
SetEnvIfNoCase User-Agent “^ac-baidu” bad_bot
SetEnvIfNoCase User-Agent “(Ubuntu-feisty)$” bad_bot

<Limit GET POST>
Order Allow,Deny
Allow from all
Deny from env=bad_bot
</Limit>

# block directory browsing
Options All -Indexes

# protect some files
<files wp-config.php>
order allow,deny
deny from all
</files>

<files .htaccess>
order allow,deny
deny from all
</files>

# block bot registrations and send them to the front door
# if you try to register and your accept statement only has */*
# I’ll think you’re a bot
<IfModule mod_rewrite.c>
RewriteEngine On
RewriteBase /
RewriteCond %{REQUEST_METHOD} POST
RewriteCond %{REQUEST_URI} .wp-login\.php*
RewriteCond %{HTTP_ACCEPT} ^\*\/\*$
RewriteRule (.*) http://yourdomain.com/ [R=301,L]
</IfModule>

———————————————————————————

Additional resources:
Perishable Press Stupid htaccess tricks
Almost Perfect htaccess File for WordPress