index.php?a=1&b=2&c=3

a=1 => webtest_1
a=2 => webtest_2
...
a=x => webtest_x
-------------------------------
b=1 => photo_1
b=2 => photo_2
...
b=x => photo_x
--------------------------------
c=1 => pc_1
c=2 => pc_2
...
c=x => pc_x
--------------------------------
...
...
...
--------------------------------
z=1n => last_variable_1n
z=2n => last_variable_1n
...
z=xn => last_variable_xn

Options +FollowSymlinks
RewriteEngine on

RewriteRule ^webtest_1/photo_2/pc_3\.html$ /index.php?a=1&b=2&c=3 [L]
RewriteRule ^webtest_2/photo_1/pc_1\.html$ /index.php?a=2&b=1&c=1 [L]
...
...
...

RewriteEngine on
RewriteCond %{HTTP_USER_AGENT} iPhone|iPad|iTouch|iPod|palm||android
RewriteCond %{REQUEST_URI} !^/my-iPhone-site/
RewriteRule .* /mobile/ios/ [R]

# BEGIN WordPress
<IfModule mod_rewrite.c>
RewriteEngine On
RewriteBase /
RewriteCond %{REQUEST_URI} !^/support/.*$
RewriteCond %{REQUEST_URI} !^/support$
RewriteCond %{REQUEST_FILENAME} !-f
RewriteCond %{REQUEST_FILENAME} !-d
RewriteRule . /index.php [L]
RewriteRule ^index\.php$ - [L]
</IfModule>

# END WordPress

##
# @version $Id: htaccess.txt 14401 2010-01-26 14:10:00Z louis $
# @package Joomla
# @copyright Copyright (C) 2005 - 2010 Open Source Matters. All rights reserved.
# @license http://www.gnu.org/copyleft/gpl.html GNU/GPL
# Joomla! is Free Software
##


#####################################################
#  READ THIS COMPLETELY IF YOU CHOOSE TO USE THIS FILE
#
# The line just below this section: 'Options +FollowSymLinks' may cause problems
# with some server configurations.  It is required for use of mod_rewrite, but may already
# be set by your server administrator in a way that dissallows changing it in
# your .htaccess file.  If using it causes your server to error out, comment it out (add # to
# beginning of line), reload your site in your browser and test your sef url's.  If they work,
# it has been set by your server administrator and you do not need it set here.
#
#####################################################

##  Can be commented out if causes errors, see notes above.
Options +FollowSymLinks

#
#  mod_rewrite in use

RewriteEngine On

########## Begin - Rewrite rules to block out some common exploits
## If you experience problems on your site block out the operations listed below
## This attempts to block the most common type of exploit `attempts` to Joomla!
#
## Deny access to extension xml files (uncomment out to activate)
#<Files ~ "\.xml$">
#Order allow,deny
#Deny from all
#Satisfy all
#</Files>
## End of deny access to extension xml files
RewriteCond %{QUERY_STRING} mosConfig_[a-zA-Z_]{1,21}(=|\%3D) [OR]
# Block out any script trying to base64_encode crap to send via URL
RewriteCond %{QUERY_STRING} base64_encode.*\(.*\) [OR]
# Block out any script that includes a <script> tag in URL
RewriteCond %{QUERY_STRING} (\<|%3C).*script.*(\>|%3E) [NC,OR]
# Block out any script trying to set a PHP GLOBALS variable via URL
RewriteCond %{QUERY_STRING} GLOBALS(=|\[|\%[0-9A-Z]{0,2}) [OR]
# Block out any script trying to modify a _REQUEST variable via URL
RewriteCond %{QUERY_STRING} _REQUEST(=|\[|\%[0-9A-Z]{0,2})
# Send all blocked request to homepage with 403 Forbidden error!
RewriteRule ^(.*)$ index.php [F,L]
#
########## End - Rewrite rules to block out some common exploits

#  Uncomment following line if your webserver's URL
#  is not directly related to physical file paths.
#  Update Your Joomla! Directory (just / for root)

# RewriteBase /


########## Begin - Joomla! core SEF Section
#
RewriteCond %{REQUEST_FILENAME} !-f
RewriteCond %{REQUEST_FILENAME} !-d
RewriteCond %{REQUEST_URI} !^/index.php
RewriteCond %{REQUEST_URI} (/|\.php|\.html|\.htm|\.feed|\.pdf|\.raw|/[^.]*)$  [NC]
RewriteRule (.*) index.php
RewriteRule .* - [E=HTTP_AUTHORIZATION:%{HTTP:Authorization},L]
#
########## End - Joomla! core SEF Section

http://www.buschsystems.com/busch-new/index.php?p=Promotions

http://www.buschsystems.com/busch-new/Promitions.html

http://www.buschsystems.com/busch-new/index.php?p=prod&name=Product Name

http://www.buschsystems.com/busch-new/index.php?p=About&subPage=Testimonials

http://www.buschsystems.com/busch-new/prod/Product Name.html

http://www.buschsystems.com/busch-new/About/testimonials.html