TourCMS uses the Borgun hosted payment pages. These are available in Icelandic, English, German, French and Russian.
You can run BORGUN in test mode and then move to using the live system. In credit card setup (in Configuration & Setup in TourCMS) you can change the URLs that TourCMS uses. This will move your integration from test to live.Test Shop URL https://test.borgun.is/SecurePay/default.aspx