3D Viewport problems with 3D Editor...

No need to post twice.

Anyway,
* create four camera viewports.
* Set Wireframe to true.
* Hide the perpective/nonwireframe camera
* render(renderworld)
* set wireframe to false
* hide the other cameras and show the perspective camera
* render

You might want to change the projection mode to orthograpic for the wireframed views.