Also it will not connect to my computer which is running Windows XP.
You don't really need to connect it to your computer. Just flash by renaming the nbh file to 'VOGUIMG.NBH' and flash the kernel by holding camera and power at the same time and rebooting. That is the easiest method ever.
Make sure u are using a non SDHC card though to do it.
Did you pick SenseUI on the first boot? Its probably defaulting to the standard home. You can change this in the Settings>>Applications menu, by clearing the defaults on the Home application and click on the "force stop" button. It then asks you to choose the UI again, when you go back to the home screen.
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