>I have successfully made a functional web browser in VFP8 SP1 using Microsoft's Web Browser control. Now I need to sieze control of any pop up windows, (i.e., force them to never exceed a certain size, not allow more than 1 at a time) but I don't quite understand how to go about this...

Take a look on NewWindow2 web browser event. You can disable the opening of a new window by setting the Cancel parameter to True, and create a new instance of InternetExplorer object with desired window size and pass it back in ppDisp parameter.