there is another way to increase the size of the square camera's....however....please note that the larger you make the picture, the more distorted it gets....haven't found a way around that yet
anyway................
click on the link below
http://www.thevillages.com/lifestyle/cam_lsl.asp
as Russ said...in the browser window that opens....in the lower right hand corner u should see a number (100%)...click on it and u can adjust the size of the picture up to 400%.....this will allow you, after adjusting the pic to the center of you screen, to view the pic in a way that is almost as large as your computer screen
the pic certainly is larger....but its very very distorted.....hope this helps