You'll have to bear with me, I really don't know what I'm talking about with this phone.

I have a brand new Blackberry Bold which is fine. Vodafone Live and something called Hotspot Browser are on the phone and appear to be the only browsers available for me to use.

I am trying to set up Twitterberry but the installation keeps telling me "Invalid Browser Detected". I have followed the instructions given from the site, ie Change my browser to read Blackberry Browser but sadly that doesn't appear as an option for me. When I do change my browser to Hotspot Browser I can change my Browser Identification to Blackberry, Firefox or Internet Explorer but none of these seem to make a difference.

Any help is welcome. The Vodafone shop that I visited today give me a ton of instructions to follow but none of it worked. However, when I was doing that a pop-up appeared stating that I had not registered my Blackberry yet. I have "Registered" through the Host Routing Table option, do I have to register somewhere else with something else?

try a battery pull if you havent already.
the registration through the host routing table, is what you are supposed to do, so it shouldn't keep coming up with the message.
battery pull, and then try re-sedning service books from the BIS