Dear Mr. Daffodils
I don't understand, why you r saying that the orders passed on your applications were ex-parte inspite of she being represented by a Lawyer. If a lawyer appears for opposite party and makes his representation that would not lead to ex-parte decision. Your story is incomplete, which raised quested as to whether the lawyer for your wife contested the application filed by you in both the matters, if yes, then the order is not an ex-parte.
You wife has the right to set aside the order/jugment only within limitation period other she will have to explain the delay. However, the question still is open as to whether she contested the divorce through her lawyer or not by filing her reply/objections. If yes, then on what ground she is going to challenge the order of divorce.
Anyways, you are on a right track, as you got married after the limition period after the order. But if you came to know the fact that she has filed an appeal challenging the divorce order, you should take advice from a lawyer and represent your self in court and contest the appeal strongly to avoid any perverse situation in furture.