If you dosed it with booze it should keep until Christmas provided that it's stored in a dark place, maybe in a tin? You have to keep on feeding it with a little booze every now and then to keep it moist and happy. I hope it helps!

gaviota_uk.  Never heard of dosing a Christmas pud before.  Christmas cake, yes but not a pud.  The pud should now be in it's basin, with clean pleated greaseproof paper and then foil over the top and secured with string.  Shouldn't touch it now until required.  Am I missing something here?  I've always made Delia's recipe which doesn't suggest feeding.