I just installed the aw_blog extension but it not shown in backend for setting or add the blog what should i do please help me out.
The first thing you should do is clear the store cache, browser cookies, logout and login again. Make sure the compilation is disabled at system -> tools -> compilation.
Try to access after performing the above actions and it should be accessible now.
Also check this link out: http://forum.aheadworks.com/blogs-not-showing-in-backend-t3426.html