Hi,

If the WindowsApplication1.Properties.Resources property was created for you
by VS 2005 then the following code should work for you (Note: you probably
don't need the global alias qualifier either so don't use it unless you're
absolutely sure it's necessary):

for (int c = 0; c < pictureBox.Count; c++)
{
   this.pictureBox[c].Image =
       (Image) Properties.Resources.ResourceManager.GetObject("_0" + c);
}

BTW, you might want to choose a more descriptive naming convention than "_NN".
Try something like, "AnimalPictureNN", where NN is the number.  I acknowledge
that might not be possible in your situation :)