2. — (1) This Part of this Act shall be read as one with Part II of the Principal Act, and accordingly every word and expression to which a particular meaning is given in or by the said Part II for the purposes of the said Part II shall have in this Part of this Act the meaning so given to it.

(2) In this Part of this Act, the expression “ instalment order ” means an order made under section 17 of the Principal Act, whether such order requires the debt and costs to be paid in one payment or by instalments, and, where such order has been varied under this Part of this Act, includes such order as so varied.