Is there anything in any of the allegations they have made against you? It can be difficult if there is, or something which can look as if there is. Also you do not explain why they have done this, if you are trying to help, It seems strange to bite a hand trying to be helpful, so is there something more to this?
If there isn't I would be tempted to write to the Church Secretary, debunking each and every allegation , (don't miss any out or it looks as if you are avoiding that one,) and demand they publish a retraction or you will be taking legal advice on possible redress. cc your solicitor on the bottom.
I would also take down the statements you make on the website - it just makes you look like somebody with a vendetta rather than a wronged party, however strongly you feel!