If you have an Internal Audit checklist based on the 2000 version, it might be an idea to update this to fall in line with the minor wording changes in the 2008 version. Also, if you reference ISO 9001:2000 in your QM etc – then update to show ISO 9001:2008 compliance. I think in one of the threads out there, an auditor was being picky on such a point. Otherwise as indicated – no big deal.