Reply by gizmodyne

It is in general better to push the nail through if feasible. You can sometimes take a nail set and hit them from the front side enough to get them to protrude out the back. Then take nail pullers and have out them.
Good luck. (Sometimes you gotta dig).

-- -John "Do I have to keep typing a smiley? Just assume it's a joke." www.flickr.com/photos/gizmodyne