Let me post a step by step.
STEP 1: Download "HnH_Ender_x64.zip".
STEP 2: Unzip it, place the folder ANYWHERE (desktop preferably).
STEP 3: Download Update zip.
STEP 4: Unzip it.
STEP 5: Move everything in the update folder into the HnH_Ender_x64 folder.
STEP 6: Double click "RUN.BAT, located inside the HnH_Ender_x64 folder.