UseBB Community

I could install UseBB on my website.
But I can't see any panels to add new categories & forums.
Should I add some MODs?
Of course, I am logging in administrator username.
And then, I can't see a option to lock a topic whitch I made
on my website's and here.
Please tell me how do I do about these.

Are you really logged in? Does the navigation say "Log Out (username)"?

In the footer navigation there's a link "ACP" to manage the forum.

Oh! Why I couldn't find it?
In this I can use UseBB.
Thank you for your advice.