So you do not have a XP CD??........is that what you mean??
Did your system come with XP pre-installed??
Usually on such system there is a "recovery"partition that is accesible by
pushing a sequence on restart.
This procedure should be explained in detail in the manual that came with
the system.
If you have "lost" the manual the Computer Manufaturer's website will have
helpfull information on how to do this.
You might have to search their website using the model # of your system.
get back to us
peter