Help!! Very urgent.  DNN 6.1.5 site fresh install.  The customer has two existing sites on two domains : let us call them www.fred.com.au   and www.fred-asia.com.  They decided to put a top-level site above these two with links to the two existing sites. The domain for this is www.fred.co (yes I know it's a silly name, who uses .co, but there it is).
The problem is that when the links to the www.fred.com.au domain are created in the HTML editor what results is  a link that codes as www.fred.co/m.au/xxxxx.aspx  If I look in the database the HTMLText table contains the link recorded as  "m.au/.......    So clearly the www.ases.co has been stripped before writing away and is then added back incorrectly when rendering the page.

I have adjusted all the settings in rad editor to do with relative and absolute links, used HTML mode, basic text box and anything else I can think of. No change. In desperation I installed CKEditor. No change. I don't think it is the editor as such - I think this is more fundamental to the HTML rendering. Does anyone have any ideas please as t how I can stop this behaviour and get correct URLs?

As I said super-urgent. Site was supposed to be live last Friday.

TIA, Graham