JMS is possibly one of the best components around and probably the most important component for anyone running multiple Joomla sites. However, this component is not for the feint hearted. It is a well known fact that any server settings can get quite complex. It should be of no surprise therefore that JMS is a complex product.

To install this component yourself, you really do need a good understanding of how servers work. I am no expert, but I am not a novice and still found it hard to understand.

Having said all that, not knowing should not discourage anyone from working with this sophisticated component. Edwin - the developer - does offer paid support. He will help you install it on your site. In fact, it is more of a One-to-one lesson on how to install and configure the product. He will show you through Skype and Team Weaver and once your one hour support is up and running, you will have a fully functional Joomla website with Multi Site support.