They sent me another lovely email this morning where they had very helpfully tried to fix the problem with the install and there was a lovely set of instructions on what to do now - so I did.
#1 click link (so I did and it worked)
#2 go to the install tab - there was no install tab, which was my first hint this was not going to work, but there was a convert tab, so I took a quick look and that gave a php error, so at that point I decided it was still very broken.
I shall now wait to see what they say next.