Mozilla Weave not updating?

I was using weave for a couple of weeks, and found it to work well, barring a few problems. For the last 2 weeks, I have been completely to connect to the service. I AM able to login, but when I try to sync, I am given a server busy error.

I like the service, but this server error is annoying, and renders the service essentially useless. I wish there was a way that I could specify where to save the file — to Mozilla, or to my own server. This would be a great option to have until the service is a little less alpha.