In reply to ChrisMoss: If they are "4 season" that always used to mean they could take a crampon. My wife has a pair of Zamberland's from the 90s which were their classic mountain boot and she has done plenty of alpine stuff in them with strap on crampons, BUT I unfortunately can't remember what model name they were.
How stiff are they? For sustained crampon use you want them to be too stiff to be able to bend by hand. Also, if you can post a pic of them as well it might help some of us more mature gear-freaks help identify them!