Judge Dredd (2009) Which version of Traveller?


Picked up a copy of the 2006 version of Judge Dredd rpg and it mentions a copy of the Traveller core rules are required. Could anyone point me to which version of Traveller it is referring to please? Many thanks in advance.
Anyone got any idea of where to get the published scenarios for Judge Dredd? My gaming group and I used to play the GW one many years ago when it first come out and one of them has just sent me a pdf copy of the Traveller Dredd rules to look over and star running something for them. I can see that "Democracy Falls" & "Bad moon rising" are the main ones but are unavailable in the UK (as far as i can see) and the postage from the US is so expensive.
many thanks in advance