Re: PCB Stencil Data
They are not called stencils, they are called photoplots. The photoplot is used to expose light sensitive chemicals applied to the copper so the board can be etched. Photoplots are produced from files called "Gerber" files.
Protel can automatically produce Gerber files. The specific procedure depends on what version of the software you are using. If you tell us what version you have, I can tell you what steps to take.
Dimensions for the board should be placed on a mechanical layer. Again, Protel has automated tools with which can can do that. However, you need to place the dimensions just as you would using a CAD program.
Panelizing the board can be done in a CAM editor, or by using a board array in the newer versions of Protel. Once again, I would need to know what version of the software you are using.
The number of pads on a board is one of the outputs available in the board report. Look in the "Reports" menu for the option.