sounds like the battery has  had it as that is a sure sign of not enough voltage for the starter motor to function properly. It will make a clicking sound (loud) as the solenoid  runs back and forth on the starter motor.
   did you just recharge the battery after  standing all that time? you can check the battery by  applying 'jump' leads when you try ans  start it. If it starts normally simple, renew battery. If teh new battery show sighns of same after a week or so  check teh alternator and make sure oyu have no current being drawn when ignition is off. (eg a boot light left on or interior lamp etc )
                
 franklin
                
 February 2008