After alot of messing around, i finally got it working, nowhere does it say change MNC to 10, but i tried it and whehey.

Must buy the £10 web and wifi bolt only!

So pay as you go settings for the G1 as follows.

APN: payandgo.o2.co.uk
Username: vertigo
Password: password
MCC: 234
MNC: 10

With text anytime you also get 300 texts free, or more if you top up more. Theres also a promotion on and you get £5 a month free credit on top (for 6 months), and an extra 10% I got £16.50 for topping up £10 and wifi free access to all cloud and BT zones. Im welll happy

Free sim cards here.

http://freesim.o2.co.uk/?f=BuXgYDui