Setting up SMARTY for use abroad X3000?

SMARTY are stating the following changes need to be made to settings for use abroad, however the profile when I login to the router appears to be read only and there is no matching profile. Any assistance much appreciated.

Name: 3

APN: mob.asm.net

User name: [leave blank]

Password: [leave blank]

MMSC: http://mms.um.three.co.uk:10021/mmsc

MMS proxy: mms.three.co.uk

MMS port: 8799

APN type: internet + mms