If you have installed Presente3D on a machine that has Microsoft Office 2007 installed. You may run into an issue that the Presente3D tab is not shown on the Ribbon Bar.
The reason for this is that you need to install Microsoft Office 2007 Service Pack 3 on your machine.
You can download the Microsoft Office 2007 Service Pack 3 from the link below:
Note: Presente3D will not work with Microsoft Office 2007 installs that have not been updated to the latest service pack. Microsoft Office Service Pack 3 has nothing to do with Windows XP Service Pack 3.