Hang on... Just found the following in me Haynes manual:
"Checking and adjusting the front wheel camber angle should be entrusted to a VW dealer or suitably equipped specialist. [...] Adjustments are made by loosening the front suspension subframe mounting bolts and repositioning the subframe".
It says rear camber and toe-setting is not adjustable.
It also quotes the following settings:
Front camber angle
(sports suspension) -33' +/- 30'.
(standard suspension) -30' +/- 30'
Toe-Setting
(sports suspension) 0 degrees +/- 10'
These must be the settings that the VAG specialist that I went to used when they checked my camber and tracking. (They said that they had checked them and that they needed no adjustment). I reckon it'll be OK - I'll just leave it.
Thanks for all your help.
Richy.