I got myself a multimeter yesty and it looks like there is a short in the neck pickup pot, but I am not certain.
Might pull it all apart again on the weekend for learning experience as I got a better soldering iron and smaller diameter solder.
What I am waiting on is this Belcat active circuit:


It has a circuit diagram, what I want to check is that the pup hot connection goes to the centre pin on the respective pot (ie Neck=Bass and Bridge to Treble) using the kit humbuckers:

Click image for larger version. 

Name:	s-l500.jpg 
Views:	646 
Size:	19.3 KB 
ID:	43910

Does that make sense?