SEO-Fusion not working on mywebsite but...

Quote

This Infusion will Change almost all URLs of your website into Descriptive SEO URLs.

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# INSTALLATION #
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1. Upload Files :
* Upload the folder 'seo_friendly_urls_panel' to the 'infusions' folder of your Web Server.
* Upload '.htaccess' file to the root directory.

2. Login into Website and goto Admin Panel --> System Admin --> Infusions and Infuse the 'SEO URLs for PHPFusion' Infusion.

3. Add the Panel 'seo_friendly_urls_panel' as Left/Right Panel on your website an Enable it. If adding as a Center Panel, then check 'Display on All Pages'.

4. Modify 'maincore.php' :

Look For :
define("TRUE_PHP_SELF", $current_page);

Now, if you are going to have URLs as HTML URLS (http://mysite.com/news.html), then Replace this Line with :

if (preg_match("/\/(administration)\//", $current_page)) {
define("TRUE_PHP_SELF", $current_page);
}
else if (preg_match("/".preg_replace("/([a-zA-Z0-9_]+)(\.php|\.html)?/", "$1", $settings['opening_page'])."/", preg_replace("/\/([a-zA-Z0-9_]+)(\.php|\.html)?/", "$1", $current_page))) {
define("TRUE_PHP_SELF", preg_replace("/\/([a-zA-Z0-9_]+)(\.php|\.html)?/", "/$1.html", $current_page));
}
else {
define("TRUE_PHP_SELF", $current_page);
}

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Now, if you are going to have URLs as Plain URLS (http://mysite.com/news), then Replace this Line with :

if (preg_match("/\/(administration)\//", $current_page)) {
define("TRUE_PHP_SELF", $current_page);
}
else if (preg_match("/".preg_replace("/([a-zA-Z0-9_]+)(\.php|\.html)?/", "$1", $settings['opening_page'])."/", preg_replace("/\/([a-zA-Z0-9_]+)(\.php|\.html)?/", "$1", $current_page))) {
define("TRUE_PHP_SELF", preg_replace("/\/([a-zA-Z0-9_]+)(\.php|\.html)?/", "/$1", $current_page));
}
else {
define("TRUE_PHP_SELF", $current_page);
}