Tim,
Sorry, I am not expert in vba or ie.
I have seen your login page and the html source also. This site is
using the method "POST" to login. I never came across this method. The
code I posted will work if the site uses click event or javascript for
login process.
I have done some trials but could not workout the solution.

There are experts here who may help you solving this.

Regards,
Shetty.