To any clever technogeeks reading these forums, I thought I had a problem too. The two main banners ,NWFA dot com and OFA dot com, appear. But, no others. So, at others suggestions I updated my Firefox browser to .4 with no improvement.
Banners of sponsors NOW APPEAR Maybe others are having difficulties too. So, let me describe what I found. Others were correct that the missing banners / links were missing due to my browser. In my case the internet browser is Firefox by Mosilla. I have installed a "pop up" blocker to this browser which was blocking the banners as if they were annoying pop up advertisements. Finally, I guessed correctly that the NWFA dot Com web site could be excluded from the protection of my pop up blocker.
If you don't already know, pop up blockers are way cool to have. I recommend that you try one out.