How to install:

(This assumes that you already have Dwarf Fortress with Ironhand installed.)

Just drag the text files and image file from this graphics pack into your /Dwarf Fortress/raw/graphics/ folder.

(To get there, open the "Dwarf Fortress" folder, then the "raw" folder, and then the "graphics" folder.)

It should ask you if you want to replace the existing files; press "yes" when it does.

This should pretty much work with any version of Dwarf Fortress.