Ok your not exporting anything your rendering with wireframe, lets just get that corrected first as it will just confuse people.

The steps you have taken to render the wireframe is correct.

It comes down to your model. What is it made off, poly sub-d or nurbs - looking at it i would say its poly with smooth preview on (pressed 3 on keyboard). If that is the case the render is correct as the smooth preview does not show you all the faces by default. Select object and press "1" and try a render to see if that correct the problem.


There are ways to change that but i dont know them. If its nurbs or sub-d's cant help you as I never use them.