Okay on the readme file there is this bit of instructions:

You will need to configure your Linkpoint account with the following settings:

Order Submission URL - This should be set to the URL of the final checkout page, example:
https://www.YourStore.com/index.php?...t_confirmation

Thank you Page URL - This should be set so that if the transaction is approved, it will process the order, example:
https://www.YourStore.com/index.php?...eckout_process

Make sure to check the box "Check if you wish to automatically display specified URL after the LinkPoint HTML receipt page."

Sorry Page URL:
https://www.YourStore.com/index.php?...eckout_payment


I am just wondering where I am configuring?