Hello,
I looked at the site using firefox and user agent switchers to test iphone, xhtml/pda, imode and they all showed the toevogen button, which I'm guessing is the "add to cart" button.
So it would appear that the N97 phone can't handle it.
If you can use the phone, please visit
www.mobilejoomla.com/uatest.php and it will show you a user string.
If possible could you post it back into this problem thread and I can then use it as a user agent switcher in firefox to see what the
www.twr-trading.nl is sending to the phone.
Thanks.