Thanks for the help! BTW the high model is near 30,000 but I know what you mean, even that still doesn't really make the most of normal ampping, this was/ is an exercise to get to grips with normal mapping.

edit: how can I redo this via the texture editor? Do you mean by re laying the UVs taking a screen shot then re scaling my existing textures to fit the new shot in ps, or is there a quicker way?