The mod adds simple recipes to your Minecraft.
These are all the recipes:
Wool > 9 String (Shapeless) Wool, Leatherx2, Stringx2 > Saddle String, Paper > Nametag Stringx2 > Lead (Simplere recipe)
For Horse-armor it's almost the same with all of them, just switch the diamond for gold or iron.
Diamondx2, Wool, Stringx2 > Horse-armor
But if you want to see the real recipes then I recommend using NEI.
It's then simplere to use the mod!