Outer Limits 4x4 Board

My TJ has been sitting now for at least 6 months ! I started her up yesterday and its running beaut with new battery and all. I just cant get her to move ! It wont go into gear ! I swear this happened a while ago aswell and some how I got it into gear. Was fine before I stored it !!

Please help me ASAP !! Want to get new rego ASAP !!

Air in the hydraulic clutch lines?
if so remove the slave from the bell housing and give it 50 or so solid pumps (I mean pump the piston, not the brake pedal) & see if that helps

Do NOT attempt to bleed it.