I'm with Fasthosts and thier support is generaly good.
Re your email problem easy- peasy - Ok Jason sorted ir for me.
The solution is on the forum but here it is and it does work
Incase anyone else wants to try it:
I changed the line
$mailObj = mail($mailTo,$mailSubject,$mailContent,$mailHeader );
$mailObj = mail($mailTo,$mailSubject,$mailContent,$mailHeader , "-f".$mailFrom);
Can't claim to know why it works ( over to Jason and Dani)
But it does solve the problem with FASTHOSTS servers here in the UK