Wear Stealth Ring when..

[Seeken]

Trying something like that, but its not working.... Dunno whats goind on, Debug says thats [False] Creatures.OnScreen(!Cre!)>=3

PHP Code:

unEQUIPRING:=3049
EQUIPRING:=3086
Cre:=Creature.ByName(Corym Sharlatan) [else]
Cre:=Creature.ByName(Corym Vanguard) [else]
Cre:=Creature.ByName(Corym Skirmisher) [else]
Creatures.OnScreen(!Cre!)>=3
Self.Equip.Ring(3049) [else]
Self.Inventory.Ring()<>!EQUIPRING!
Self.Equip.Ring(!unEQUIPRING!)
Exit()
{else} 
Self.Inventory.Ring()==!EQUIPRING!
Self.UnEquip.Ring(0) 


Could some1 help me?