Extract the zip files and upload into your magento directory. The zip file contains:
After upload all source code, log into the backend, go to System > Configuration > tab Advanced, check the module EM_Minimumamount appears and is Enabled, if not, click on the save button twice. Make sure you see the module is Enabled.
Go to System > Cache, click on the button Flush Magento Cache to clear all cache.
You should see a new menu EM MinimumAmount by EMThemes under the Customers menu:
On the front-end, the cart will display a notice message:
|Compatibility||1.4.1, 1.4.2, 1.5, 1.6|