Help (Part II)!
As you can see, the panic is partially over, since I've found a way of getting some of the basic code back. I still need to resurrect all the data lost though, which won't be easy without being able to see what was there (and will take ages). Does anyone know if there's way of viewing what your site used to look like (perhaps there's a cached file of it somewhere that you can look at)? Still, this will prompt me to make some changes to the site that I've been meaning to make, so I guess it's not such a bad thing all things considered (and I'll know to keep copies of the template in future!).