Installing and Updating

Completely log off WoW
Copy the folders into your WoW Addons folder.
Logon to WoW on your main Healer.
As a priority you should open the options and configure spells, cures and buffs.
Updating Troubles
If you get nil errors after updating.

Completely log off WoW
Run the .BAT file in the Healbot addon folder, this clears old saved Healbot settings from your WTF folder.
Logon to WoW on your main Healer.
As a priority you should open the options and configure spells, cures and buffs.