It would help everyone, including yourself, to follow the normal guidelines used at all technical forums, by providing some basic informatiomn about your system. You will normally find these guidelines at the top of a board, marked 'sticky'.
Why this is so should become obvious when reviewing your post. You have a problem with a blog: what blog system are you using? With what version of CB and in which version of Joomla? Without that basic data it is impossible to even consider providing you with an answer.