Faxing from Outlook Vista 64 and SBS 2003

Hi,

I have a 2003 Small Business Server,

I have just configured fax services to route incoming faxes to an email distribution group. This works fine on my Vista 64 PC running Outlook 2007.

I am experiencing problems sending faxes from outlook.

I have set up the fax server in Windows Fax and Scan (as administrator) and can successfully send faxes from here.

I ran Outlook (as administrator) and added the Fax Mail Transport service.

However, whenever I try and fax from outlook (using [fax:number]) I just get an undeliverable message:

this occurs whether I send normally or actually select the Fax Transport Service from the drop down.

I only have one fax account configured but this gives me two fax "printers", my normal one and "fax on myservername.mydomainname"

Has anyone got a similar setup (with sbs) and have they managed to get this working. I did search quite a few sites and could not find a solution.

Many thanks,