Octavia tdi tracking and geometry

What are the limitations with the standard TDI, I have been told there very little adjustment on these cars. But previously on this forum I was told that people could adjust all sorts. The reason being I have had a lot of work do e on the front of my car, full super pro and soon a wheel bearing. My tires are wearing funny so I'm thinking new tires and a tracking/geo and want your guys opinions. I'm in the chesterfield area and should have 2 new front tires in next 2 weeks