Hi, Can anyone help me with some MMS settings?

I'm on pay monthly o2 using an unlocked iphone 1.1.3, I'm trying to use swirly MMS but can't get it to work!

These are the settings I've used,

MMSC http://mmsc.mms.o2.co.uk:8002
Proxy 193.113.200.195
APN wap.o2.co.uk
username o2wap
password password
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