For quite a while, spamming was an issue. We got that under control.
Now, your saying it won't let you create your own topic (thread). Is this correct? I'm assuming that's what you mean by blog.
If this is the case, follow these instructions:
When you go into a forum (Pittsburgh Steelers, NFL Draft Etc.) you'll see a list of threads started in that forum. At the top of the forum you'll see page numbers where you can view different pages of the forum. If you look to the far left of page numbers at the top, you'll see a button that says (New Thread). This button is also at the very bottom of the page.
"Either you're playing dumb, or it's not an act". -Judge Judy
"There's problems in Pittsburgh. The Quarterback isn't one of them". -Phil Simms