Perhaps I am a bit nearer. The email I sent to the address they gave me (as above) bounced, so then I tried to register again using my work email address and name of business, ie. as an institution, using n/a for address, telephone number etc. It then ACCEPTED me for a 2-week free trial starting now and sent me an email with log in and password (different words to what we have all been using).
In a rush of mad excitement I tried again to log in but it still doesn't work. It is a different looking page, but I cannot get beyond the log in page.
I get the impression they are 'doing things' and it is not working very well right now.
Maggie