It's definitely not just you. It appears that the "new client release party" last night was really more of a funeral for the old client.
Nothing really works on the old client anymore, as far as I can tell. You can now get on the new client by going to myvmk.com in your browser (even on mac), logging in, and clicking "Enter Alpha." The new client is pretty far from a finished product, but it works well enough for buying items, trading, and socializing. Kind of stinks to lose what would currently be the more functional client, but hopefully sometime soon it'll be worth it.