That sounds like the syncro has gone, the usually go on 5th first. On an 04 you have the earlier box and they are know for it usually won't go into first until warm, clutch is not really adjustable very much but you can change the biting point a small amount, the grinding noise sounds like it will be the thrust bearing or a dry shaft, if your lucky it could be either a slave cylinder or a worn clutch if your unlucky its the syncros and that's either a new box - get a CD009 from a 2006 onward - or a gearbox rebuild with uprated syncros
Well get the dealer to sort it for you