DivXp

ok here's my actual problem that seems without any solution. thing is i have a windows xp kit that's originally in spanish.it has everything in spanish, including the actual installation . problem is how do i revert it to english? there is no actual LIP (language interface pack) for english since LIP can only be installed on original english version of xp. and i cannot even use other LIP on this version since it is not in english. is there a trick i should know? (and no i don't want to get an english version of windows since i need this particular version for some reasons).