Ksitigarbha Fireball belongs to Fire Element, Hanging such Ksitigarbha Fireball can lower the chi caused by flying star 3 Jade and decrease conflicting elements.
Flying star 3 Jade, which causes trouble, damage, arguments, lawsuit and legal entanglement, belongs to Wood Element. Wood Element destroys Earth element that original Bagua belongs to. Therefore something representing Fire Element is very good to display here as the mediator (Wood generates Fire and Fire generates Earth. On the another hand, Fire decrease Wood and Earth decrease Fire. Details of these see Feng Shui Five Elements.
In 2009, Flying star 3 Jade is in NE position. In the Year of Tiger 2010, you can display Ksitigarbha Fireball in the South position where the 3 jade will locate in. In 2011 year of the Rabbit, you can move Feng Shui Ksitigarbha Fireball to North position. Details are at Flying Stars.