(b) Pending Actions - In actions pending on December 31, 1963 A.D., pleadings, motions, orders, court forms and other papers filed on and after January 1, 1964 A.D., should be captioned as provided in section (a) of this order, but shall be valid if entitled in the name of the court in which the action was filed prior to January 1, 1964 A.D.