How can I get a Vodafone Mobile Connect 3G data card to work with another network?

[bydandie]

OK,

The following are install notes I have from the start (For a SIM-unlocked Vodafone Mobile Connect 3G data card - Vista compatibilty is detailed in the link below and does require at least version 9.1 of the mobile connect software from that link.):

Download the Vodafone Mobile Connect software from this link.

With the data card removed

Install the software, accepting the defaults and installing .NET framework v2.0
Select 'Vodafone UK' as the carrier (Regardless of the SIM to be used)
Accept the EULA
Select 'PrePay'
Accept the standard install and restart.
Once restarted, click next at the resulting prompt from the VF MC software
Select Vodafone Mobile Connect Card as the device and click next

Insert the card

Click finish once the device is detected
Once the carrier network has been detected, click connect
An error will occur, click cancel
Goto settings>manage devices and select edit
Change the APN to that of the carrier (three.co.uk in this case)
Amend the authentication and DNS server settings (blank for the 3 network)
Click OK and Apply.
Go to Manage Connections, and select the behaviour you want (I have Automatic and 3G preferred set, but that's down to preference)