Voyager 2.8 crd wont start
 

:(just got my car back form having a re-conditioned gearbox fitted.car ok for 2 days than i valet the car and left all doors open to dry.got in car 4 hours later and turned over ok.drove for 2 miles and returned home ,switched off and returned to car 2 mins later and it wont start.all ignition lights on but wont turn over at all.tryed charging battery which is new and still it wont turn over.all i get is the lights on inside on the instrument panel and consol.
Recovery guy checked for any fault codes and nothing came up..
Help!!!!!!!!!!!!!!!

Is the earth strap ok?