Hey Sam.
Yes - you need to be a supporter to not see ads. Actually the ads were supposed to be shown to everyone from months ago but I realised that I hadn't configured something properly the other day.
To identify yourself as a "cool blue" Supporter - you need to set your group membership to "identify yourself as a Supporter".
Head over to
http://forums.deeperblue.net/profile...editusergroups
Thanks!