I you need to phone contact DLink support for your region and ask them if this router support a Static PPPoE connection. Review the Setup/Internet/Manual connection area if your router. There should be DHCP, PPPoE, PPPoA, Static and maybe one other. You could try static, however if your ISP needs the router to handle the PPPoE connection, Static might not work..
Pleaes phone contact DLink support and ask them if they can help you configure this router for use with you ISP.