All well, back to subject at hand, I had the same problem you did fpoole, the only thing is that I own my own hosting company with many servers. Thus meaning I fixed the problem myself in about 4 minutes, and it worked fine.
Im sure you will be all fixed up after your host contacts you, and if they dont, come talk to me, I will host you.
Im sure they will get in touch soon and you will be well on your way to enjoying the features of this product.
The features keep me using photopost, lord knows its not the respect from the moderators around here.
I have some important things to attend to, so take care, and report back if you get it all sorted out!
later