please help, i'm stuck

I’m very new at all of this, so i’m trying the nice 30 minutes animation step by step thing from the blender.org site. http://wiki.blender.org/index.php/Manual/Your_First_Animation_in_30_plus_30_Minutes_Part_IIn

But, now I’m at the part where you have to do some skinning. only apparently this manual is based on an older version of blender, where they use armature- create from closest bones , and then you have automatic skinning. And I don’t have that button…Can someone help me get past that part by getting the automatic skinning done in some other way, so I can go on creating my Gus? :o

Thank you