@Halpo133 - It appears our quest to heal Neville's parents isn't on the character sheet. You should probably just take the Class Quests tab and turn it into a generic Quests tab. Also, you might want to put the current class level on the class quests for the sake of clarity and to prevent yourself from forgetting.
Speaking of that, Advanced D&D doesn't appear to have a spell outside of Wish that will let us heal their insanity. Wish is troublesome due to the literal genie aspect of it, so we should consider other options. Some thoughts...
1. We'd need to find another fictional magic that has the right kind of spell.
2. We could wait until a D&D version comes out that has a healing spell that cures insanity, or possibly work to cause such an edition to come out early somehow.
3. Look to invent something using Harry Potter style magic, or perhaps enhanced with Gamer stuff. For example,
Dr. Ubbly's Oblivious Unction can heal scars left by thoughts (though this may be a specific context) and may have uses in healing milder cases of mental trauma in general. One thing we might try is seeing if Soul Gems can be used as potion ingredients to enhance their magical effects, so a Soul Gem boosted version of this potion might actually work to cure insanity caused by trauma.