I used your xp mirror automatated procedure from your website and it seems to work on XP Pro Sp2(site says its for XP Pro Sp3), is their anything I need to be aware of ?
No there is nothing you should be aware of. It was designed and tested on SP3 and no regression testing was performed, so it is stated that it works where it was tested and that is the only guarantee...
i want add mirror in winxp sp3 please guide me
Did you follow the instructions? They are very clear. If there is a specific issue we can answer it here.