Vantage 4.0 ==> 8.0 happening today

We're getting Vantage 8 installed today complete with an upgraded
version of our 4.0 database to trial for a few months.

Any common pitfalls to look out for?

I realise it will take a lot of my time to go thru and re-customise our
crystal reports (company logos etc), so I was just wondering if any of
you Vantage 8ers out there had any handy tips for me?

Cheers,

Jonny
(I should add that we've already completed all the little checklists of
things that Epicor have suggested we do like pilot lists, planning for
training etc)