After downloading the mod, use a program such as 7zip or WinRAR to extract the main folder of the mod.
Drop that folder into the mods folder which is supposed to be in the game's installation folder (don't know where that is? click here)
HopLib is only used as a fallback to localize enemy names in cases where Joy's Score Counter does not have a name on record for an enemy, and is optional.
BeardLib is optional, and is used for non-English localizations and auto-updates.