InfoPath Dev

I'm a bit stumped at the moment.  Here's the scenario, I'm using the UpdateLists web service to post a few fields to a SharePoint list when the button is hit.  It works without a problem from within the Application, but in the browser I just get a Warning that tells me "Some rules were not applied" and when I show the details it says "An error occurred while the form was being submitted.".  Any suggestions would be greatly appreciated.

BTW I'm using InfoPath 2007 and SharePoint 2007 with Forms Services.

Thanks,
--Scott

 Update:  Since posting this I've realized that it's all web services that have issues working in the browser on my site.  I'm now attempting to contact the site admin to ensure that anonymous access isn't enabled under Authentication Providers.

 --Scott