First you will need to download the LinkPoint PEM certificate.
You can download the PEM file from LinkPoint Central.
After you login click on Support at the top, then click on Download Center.
Click on Download next to PEM and make sure to save the file to your desktop.
Now click on your Start button -> Programs -> Accessories -> WordPad
Click on the File menu and select Open.
Under "Look in" you should have Desktop selected.
Under "Files of type" click on Rich Text Format and select "All Documents."
Double click on the PEM file.
Click on the Edit menu and choose Select All.
Click on the Edit menu again and select Copy.
Next you will need to log into the administration for your Internet Treasure Chest web site.
Here is the URL address where you can login:
https://admin.itcstore.com/Logon

After you login, click on Store Manager on the left menu.
Next you will click on Merchant Account.



Enter your LinkPoint store number in the store id field.
Click in the box for LinkPoint certificate and paste the certificate you copied earlier.
Here is an example of what the certificate will look like:

Finally click on the Update button at the bottom of the page.