You don't get a blog on CP. You can either post an article here.
Else you can link your blog to CP.
To you link your blog to CO, go to Articles on the Code Project menu and click on the "Post your Blog" menu.
Alternately, you can directly goto
http://www.codeproject.com/script/Articles/BlogFeed.aspx[
^] for more information on posting your blog.
For posting articles, you can go to
http://www.codeproject.com/script/Articles/Submit.aspx[
^].