There is a little PROBLEM here: http://addons.oscommerce.com/info/6044

I've installed the latest Anti XSS+SQL Injection to help PCI Compliance by chrish123 added 19 Jul 2008.

When I click the button on advanced_search_result.php the product is added to the customers basket
BUT I get redirected to the iplog.txt telling me I should go away ... which is no good at all.

When those lines are cut off .htaccess (commented) clicking the button gives no redirect:

This is the relevant part in .htaccess
CODE
# extra anti uri and xss attack script 2 - sql injection prevention
Options +FollowSymLinks
RewriteEngine On
RewriteCond %{QUERY_STRING} ("|%22).*(>|%3E|