ISA 2004 Site Access

We are running ISA 2004 Standard on 2003 standard and the workstations are XP SP2.

I have a rule that denies internet access to a user group with the exception of: http://www.stapleslink.com
https://www.stapleslink.com
https://170.37.20.100

After that rule there is an allow anything, anyone, anywhere, anytime rule.
Then the last Default rule which is a deny everything.

I have a shortcut placed on the users desktop to http://www.stapleslink.com.

The users receive the ISA deny page. The real time monitor shows thier traffic as being blocked by the last default rule.

If I try to use either of the other 2 exception sites, we receive the following:

Network Access Message: The page cannot be displayed