The URL you’ve provided redirects to another website, which is not using WordPress – could you please double-check, or is this behaviour intended?
Meanwhile, here is a concise guide on setting up the one-page front:
1). Create a page that will serve the “base” for the front page and make it a “One-page” template (in the “Page Attributes” box while in the edit mode). This is required due to the way WordPress handles its front page displays.
2). In the “Settings -> Reading” admin section, choose “Static Page” in the “Front page displays” setting and select the page you’ve created from the drop-down.
3). In the Theme Options panel, “One-page website” tab, check the option “Activate one-page website mode” and do not forget to press the “Save All Changes” button to preserve the setting.
4). Now each new page you create will display as a section of the front page (you can give them any templates except for “One-Page”, since that one is needed only for the “container” page we’ve created above); if you need to exclude any page, you can do it in the “One-Page Website” tab of the Theme Options panel. The menu will be generated automatically, you can also control which items to exclude in the above tab of the Theme Options panel.
Should you want further explanations on any of the steps, do not hesitate to ask!