This mod is unmaintained
Have a look here for newer versions : https://github.com/Lothrazar/CreeperHeal
An open source mod for Minecraft Forge to auto-heal world after an explosion inspired by the famous bukkit pluggin CreeperHeal from Nitnelave.
Clients don't need Forge Creeper Heal installed to join your server BUT they need have Forge.
See : Settings Wiki
See : Command Wiki