Did you set the level range to be within the range that you want the NPCs to be casting them? I'm not sure why they are set to proc invis, that should be set as a buff. If you want them to cast a spell on a player, then you would need to make sure you set it as the right type.
http://www.eqemulator.net/wiki/wikka...cspellsentries
If you want them to proc a spell when hitting (vs casting a spell), you need to set the spell ID as the proc. Also, you can check for parent lists that might use different lists of spells. You can have up to 1 parent list per spell list.