mot advice

Ordinarily the course of action advised would be an inverted appeal, whereby a DVSA inspector would re examine your vehicle and determine whether a Pass Certificate should have been issued.
Unfortunately you have done the sensible thing and had repairs done so even if you presented the tyres and track rod end there is no way to establish that they were fitted at the time of test so you have no recourse against the MOT tester or the testing station.
The only thing really you can take away from this situation is it shows the quality of workmanship and professionalism within the garage and in future I would take my business elsewhere and advise other people to do the same.
Also was the ABS light permanently illuminated or does it only show up whilst driving? If the latter is the case it may have not reached sufficient speed to be triggered during MOT test procedures