IE 6.0 "Error on Page"

I am accessing a new web site to do some investing in stocks. After I place my order on the "Order Page" screen and click on the SEND button, it should bring up the "Confirmation Page" screen, so I can check if I placed the order properly before actually buying the stock.

I use 6.0 which is generally trouble free for me--but when I do these steps I get "Error on Page" at the bottom left hand corner where "Done" usually appears. I had a friend access the same web site using IE 5.5 and she had no problem bringing up the Confirmation Page screen.

How can I tell if the problem is with 6.0, my computer, or the web site? Thanks for your suggestions!

 

In Internet Options ander the Security and Privacy tabs for the proper effect.