Where have all my pictures gone?

I've just realised that one of the webhosts I use to host some of the images used on this blog (I don't host them on Blogger much because (a) you can't list them and (b) it converts everything to crappy jpegs) has seen fit to erase everything from my account space. Without warning. I don't know how long its been since this happened, so apologies to anyone who's been image-less (although it's partly your fault for not telling me).

I've restored all of the broken images I've found bar one (the Java strain partitioning figure, which I'm going to have to redraw). Let me know if you find any more. I'm off to find an e-mail address which I can impotently express my displeasure at.