Installation

    Install the usual way, through Joomla installer. You only have to install the module.

Warning : the only difficult part is finding the proper position to publish this module. It can only work properly if it is the last module published. Also, you should publish in the last module position in your template.

I cannot give you more accurate advice, because this is dependant on each template. For instance, on the standard rhuk_solarflare_ii template that comes with Joomla, you should use the 'debug' position, because it is the very last module loaded on the page.

Basically, you can either open up your index.php template file, and search for the last loadModule() function call, or alternatively just try every module position until it works !
shCustomTags does not have any output by itself, so it can simply be published in any available position of your template.