Certifcates from Windows Internal CA

Certifcates from Windows Internal CA

I am suing a Windows Internal CA and want to use certificates from this CA. The guide provided here:  http://www.manageengine.com/products/self-service-password/adselfservice-plus-ssl-installation-guide.pdf provides no instructions for a Windows CA. I have tried the instructions from this link:  http://forums.manageengine.com/viewFile.do?fileId=49000005194646&forumGroupId=49000000002007 but also with no success. Can anyone be of assistance?