right, you are using an eeepc with xandros linux.
this isn't old linux, btw.
you should be able to put wine on it.
here is a guide on the subject:
PS: wine isn't perfect yet, and wont run every single windows application out there(quite the opposite in fact).
also, if it turns out that wine doesn't do what you need, i dont recommend installing XP on the eee.
Im not trying to offend you but it seems like this is your first linux machine:
dont be put off of linux by the lack of capabilities/flexibility of Xandros, there are better distributions out there - like ubuntu, fedora or debian - and they are all FREE(most of them anyway).