I need internet and mms settings for htc s620

Please could you help me obtain internet and mms settings for my htc s620.
I am using an orange sim card

Mobile internet (WAP) settings required for this phone on O2 pay and go. Are there any that will enable me to browse and email?

Why don't you call or sms the customer-service of your provider?
they will send you an sms with the settings for the phone.
friendly greetings, Gilbert.

I have an unlocked BT Broadband Anywhere htc S620. I can receive SMS messages but cannot send any. Can you help?