On the subject of royalties and as I've already stated to Pete, this guy is currently being investigated by the relevant bodies, but these things do take time, so we have to be patient.
Tracks like Just Loving You may have been big for the last 20 years, but the US copyright owners are probably not aware of the Northern Scene, so they may refuse the licence on the basis that an individual or record company only wants to licence 1 track. It's makes more business sense for them sense to try and licence enough tracks for a various artists/single artist compilation. That's why you see more comp's for one label, and although you do see comp's with tracks from more than one licensing source there are less of these. Ady will be able to confirm that this is the case with stuff on the Ace group of labels, if he wants to to put out a comp of different sources it's fairly straight forward if it's say Money, Modern, etc for which Ace already have licensing deals in place. CD's like the recent 100 Club comp contains tracks from a large number of licensees, it's all about economics I guess.
TTM