OK thanks for looking, I'll leave the contact page 'published' for now, in case anyone else has any idea, For what its worth I have ran contact forms before on this site and they ran fine. The previous 'incarnation' of the site also used wordpress with no issues.
Later I'll try setting up the contact form on a non zenpage page and see if it works.
Yes the servers do seem a little slow at the moment, I actually host which servage in Germany:-) I'm in the UK
Also I noticed that on the contact form plugin options, if I omit certain fields they still appear on the form. I did see another thread about this from a few weeks ago, which gave the impression it was fixed?
Thanks again, its been really good using zenpage other than this issue, just taking me a while copying everything over from the old version of the site!