Managing IE7 Homepage via Group Policy

Hi,

We have windows 2003 and citrix Presentation server 4 environments, the home page for the IE is set to the intranet and seems to work fine with IE6. I am currently testing IE7 and the hompage is not being picked up via the group policy. do i need to download .adm file for IE7 or is there another explanation for this, any help would be greatly appreciated.

Regards

Rizwana Alam