The installation is quite simple and can be done in a few minutes.

First of all

{interface} The default interface is "default". {theme} The default theme in the interface "default", is called "default".

Step 1

Extract the module package into the magento directory.

Step 2

Edit the file :
and replace :

with :

and :

with :



Now go into Magento Backend > System > Configuration > CATALOG > Inventory > Stock Options and set "Display out of stock products" to "Yes". And that's it, your module is ready.