Possibly but your XP will have all the chipset drivers etc installed for your old PC which will prevent it booting properly as there will be a mismatch with new Packard Bell. Two options :-
Boot up the old PC and completely uninstall all chipset, graphics, network etc drivers and shut down. Install Disk to new PC then download EasyBCD click here on the new PC and add XP to boot menu. Install disk and see if XP boots. It might and it might not, I have been successful with this method in the past.
Or install the disk and do a repair install of XP.
You really should have the retail version of XP for this to be legit.