Hmm, that's just up the road from me and it's the first I've heard about it
:-0

As for flint knapping, there's a 1 day course at Flag Fen on July 17th for 45 quid.

http://www.eastmidlands.info/flagfen/flag_fen_events.htm

I sent for the details at the weekend but haven't heard back from them yet, if anybody is interested I'll post the info up on here when I get it.

-Chris