I have finally gotten around to installing them on the car (they've been built up for months in a container) and I have found that once I have torqued the bolts attaching the caliper to the hub that the caliper then fouls against the rotating portion of the disc/hub.

Has anybody else had this problem with the kit? It appears to be only a problem on the left hand hub (offside).
Minispares have been really, really great in all of my dealings with them so far and I expect they'll be able to help me sort it quickly. This is definitely not a slight on them. I have contacted Simon for advice or the next step and am awaiting his response, but I thought it'd be useful to see if anybody had run into similar issues.
I believe that it may have to do with the rough casting process from talking to a few friends/ workmates?