Save the button to your computer and upload it to your server, put the image code in the IMG URL HERE section in the code and copy the code to your site^^

If you must direct link then right click on the image and scroll down to properties (P) then copy the URL of the image and paste it in the code. But I much perfer you not direct link.
<a href="http://ky.elysium-fields.net" target=_blank><img src="IMG URL HERE!" border="0" alt="Kuroyuki Networks"></a>