Ah I thought you judging by your Man Orchid avatar (very nice image!). Indeed, some people are very helpful but you need to get to know people and post on a few threads before people will trust you to the extent they will give site details out. The best place for sites and updates throughout the 'orchid season' is
BirdForum - The Net's Largest Birding Community, Dedicated To Wild Birds - lots more orchid people there!
Fortunately I managed to find and photograph every British species last year :)
I'm sure you're aware but I believe the Bog Orchid is now extinct in Norfolk (mindlessly stolen) so you may have a long journey ahead if you want to see one. You're ok for Fen Orchid though!
Mike