HTC Hero - Internet Not Working

Hi Everyone,

New user here, so Hello!

I have recently bought a HTC Hero Unlocked Brand New but when I use it on the internet (with phone signal) it doesn't work. It works fine on WiFi but whenever I try to go on the internet when using phone signal, nothing seems to happen......I get now arrows or anything showing.

I have checked all the settings and they seem to be right.

What could be causing the problem?

Also, Does anyone know how to setup the phone for a Hotmail Account for emails, I tried but it didn't work.

Thanks, Any help would be very much appreciated.