Google cache has a copy dated after your first post but I am getting bounced to a generic "sign up for a blog" page.
If you log in to your account at Bravenet.com and go to the webapps control panel do you see:
1. No blog registered
2. Blog registered but no content when you go to it
3. Blog registered and content shown
4. A warning message of some sort.
If the blog was taken down for cause I would have expected a "suspended" notice rather than a generic redirect. Unless you have a paid account and can raise a support ticket you may have a longish wait before a Bravenet tech reads your post as thy don't seem to be checking th forums very often at the moment.
Do check the junk mail folder in your email account just in case you have been sent a warning notice. Yahoo is good at mistaking important emails for spam.