Hi:
I don't see a way to do this using out of the box InfoPath functionality. I did, however, have luck using code -- I put the hyperlink control in a section (used only for that control) and then used the Context Change event to set another field that I based conditional formatting of the submit button on. This sample is in C# for IP 2003.To save the sample, right click on the link in the title area of the post, as 'Save As'. You should be able to then open in design mode and preview....
The code is pretty simple -- in the OnContextChange event:
public void FormEvents_OnContextChange(DocContextChangeEvent e)
{
if (e.Type == "ContextNode")
{
//make sure it is our target group
string targetGroup = e.Context.nodeName;
if (targetGroup.Equals("my:group1"))
{
//set the field we are using to conditionally disable the submit button to true
thisXDocument.DOM.selectSingleNode("/my:myFields/my:IsEnabled").text = "true";
}
return;
}
}