U cant do a second year as im aware anyway, u can extend your initial year making it 2 years but dont think u can do a second year down the line! I may be wrong tho
Just to follow up on this i have spoken to the australian embassey in london today and as long as you are not 31 when u apply an get accepted for 2nd year visa u CAN have the 2nd year even if it commenses when your 31
if ure gunna apply for any visa surley it would be a family migration visa, the only thing that might stop it is the conviction but i cant see it after 10 years, i think ure family would have to give u a sponsored reference anyway