I installed the jSecure Authentication module running in Joomla 1.5 and a rewrite.script (cos .htaccess does not work) and the backend Admin section disappeared altogether so I cannot access my site!!

As the rewrite.script caters for the standard mod_rewrite rules that are required without the admin section plugin. I would suggest that you temporarily disable the rewrite.script (by renaming it), along with disabling the seo link options in the configuration.php file. This will permit you to access the administration section whilst your site continues to function.

If you wish to continue using the admin section redirect plugin, you may have to write an exception into your rewrite.script to permit the plugin to function correctly.

Does anyone know of a rewrite.script that will solve this issue?