I have worked through the installation process on a Joomla 1.5.9 site and JMS 1.1.13 and have the site url redirecting to the /multisites/url. The multisites/url is mapped to the master database. When I enter the url into my Firefox browser I get the listing as follows:

Index of /

* CHANGELOG.php#
* COPYRIGHT.php
* CREDITS.php
* INSTALL.php

etc.

What am I doing wrong?

Thanks.

If you see the list of files, this probably means that you have problem in your apache configuration or IIS configuration that does not interpret the PHP files.

Check also your hosting server because you say "redirect url".
With JMS, you can not use redirect because if you use redirect, this mean that when the request arrive to JMS, the url is modified and JMS can not know which website was requested.

So perhaps you have to also review this part.
See also tutorial that could help you in the configuration of your hosting server.

Thank you for the response. In actual fact JMS and the multisites folder was working perfectly and it was replicating what was happening in the master site, which was not configured correctly. Once I corrected that, JMS worked.

I realize it is important in JMS to get the addon site correctly mapped before trying to replicate a slave site so that the symbolic links work. Hard lesson but making headway and JMS is working well for me