Answer:
There are a few ways to change the look.
If you want to view text only, go here:
http://dogaddicts.com/smf/index.php?imodeIf you want to change the whole forum look, select the "profile" button that is near the top of this page.

On the left hand side of your profile page, there will be a modify profile menu.
Select look and layout. At the top you wiill see Current Theme: Forum or Board Default (change)
Select change. There will be a few different options. You can always change it back to fourm default.
If you want to view the last 50, 100 or 300 messages go here
http://dogaddicts.com/dave.php