Polaris as tethered modem

[spynappels]

Hi again guys,

Just another question. For my work, I have to travel between Northern Ireland (UK) and Southern Ireland (ROI). I have an O2 datacard for my laptop when I am in ROI but I want to use my Orbit2 with a 3 SIM and unlimited Internet as a tethered modem when in UK coverage. Could someone just give me some idea as to how this works? I know there is an internet sharing option on the phone but what do I need to do with the laptop to get this working? Laptop running WinXP and Ubuntu dual boot, but connectivity required for WinXP, Ubuntu is probably too much to ask for.

Thanks in advance.

Stefan.