The site has had a cascade of problems, commencing with us exceeding the server’s size limits, and ending with our ISP shutting the site down because they interpreted our attempts to move gigabytes of material off-line as suspicious!
We were finally allowed back up today, and are now moving the site to a different ISP.
There may be some further disruptions in this process, but it will be worth it.
I am sorry that the site has been down for so long, but with no support staff to look after these things and no time to do it myself (let alone expertise!), I have had to wait until volunteers were able to sort out the problems.