This said, to be honest I had quite mixed emotions after having read this thread : It's quite obvious that you're suffering about the current state of your club and especially their website.
On the other hand there is a saying here : "You don't wash your dirty laundry in public!"
Imagine that one of the "old school" board members reads this - what would she/he think, what would she/he fell about it ?
I really think you were right to bring the subject up to the board committee and to discuss it with them - or at the club members general meeting, if the board committee refuses to. But IMVHO that shoul be the last resort : I think it's better to talk it over with the committee ! F. e. you could ask the board committee (or maybe better the members in private ?) why they refuse to change anything or even talk about it in spite of the fact that the club obviously is in (deep ?) trouble. BTW : Maybe they're afraid of "side effects" on your generous offer ? "Quidquid id est, time danaos et dona ferentes." ... ? 
And please keep in mind that they (or even the club members at the general meeting) might not agree with you they might be confident with good cause.
Then you have to accept this, too !
