cclarry,
Seems from the forums that Bitdefender does create a lot of false positives. There seems to be lots of posts from web masters complaining about their sites being blocked due to their anti-virus software.
I have opened a support ticket to remove jamsoft.co.uk from their blacklist. How on earth it made it onto the list is another issue altogether. I'll probably never be able to answer that one.
Give it a day or so and it should be unblocked again.
Thanks,