Adding XP in another partition users into Vi$ta

I am dual booting 32-bit XP and 64-bit Vi$ta. I wanna create a folder that's readable by an account of the same name from both XP and Vista.

How should I do it when I boot Vi$ta?

I think I had possibly asked the same question before but I forgot....

@~@ Might, Courage, Vision, SINCERITY.
/ v \ Simplicity is Beauty! May the Force and Farce be with you!
/( _ )\ (Xubuntu 8.04.1) Linux
^ ^ 19:54:01 up 2 days 4:37 2 users load average: 1.00 1.02 1.00
不借貸! 不詐騙! 不援交! 不打交! 不打劫! 不自殺! 請考慮綜援 (CSSA):