Don't forget, you'll also need to turn on the Guest account on your W2K laptop, in order for you to access the files on that laptop.
I think sometimes you can provide the login details for the W2K machine directly from the new WXP machine, but other times the username box is greyed out and you have to type in a password that you don't remember choosing - then you know you have to enable the Guest account on your W2K machine. Should work without problems from then on.