Was just the TOB replaced or the slave clyinder with a new TOB???
What were the instructions for the repair, just to replace throw out bearing or inspect and replace worn parts??? What does your receipt for the work say???
Check this link out for info:
http://www.nicoclub.com/FSM/350Z/coupe/2003/cl.pdf
http://www.nicoclub.com/FSM
Hopefully someone with more knowledge than I on this subject will chime in.
How many miles on vehicle???