Where are the subsurf buttons


I am completely new to Blender. I have been trying to go through some of the tutorials but I cannot find the Subsurf buttons. The tutorials say they should be in the Mesh panel, but they are not there when I open the Panel view. Most of the other buttons are there (“Auto Smooth”, Sticky, UV Texture, Vertex Color…)

Any help will be very much appreciated.

I have Blender v. 2.44 and I am running WinXP.


subsurf is a modifier and being that it is a modifier it is applied via the modifier button and here is the button


Thanks a lot.