Guys you all have banners like Minkz and Minerman, but whenever I post MY banner it comes oout small. And when I post things on MincraftForum, I wanna let people know to join Noobstown!

Looks like you are trying to add it as attachment. There is an easier way.

In the menu of this forum go to
Profile -> Forum profile
and into the field "Signature" you copy the "ForumBB code" the signature generator gives you.

Then you click "Change profile" and that should be it. Test post something here then to see if it works.

Thanks you all