Once you have installed HikaShop, you may upload the SageExchange Payment Plugin through the Joomla Extension Manager.

  1.  Upload `sagepayments.zip` via Extension > Extensions Manager > Upload Package File
  2. Find & Activate the plugin by going to Extension > Extensions Manager > Manage
  3. Add the plugin through the Hikashop settings by going to Components > Hikashop then clicking through to System > Payment Methods
  4. Click 'New' and then click on the 'Hikashop Sage Payment Solution Payment Plugin'