You need to put the name of the image (/c_images/notifications/ FORMAT .png)
PlusEnvironment.GetGame().GetClientManager().SendPacket(new RoomNotificationComposer("Crush Event Alert",
"<b>" + Session.GetHabbo().Username + "</b> is hosting some...
I'd be pleased to work with you Mustache, I think we can both learn from each other and complement some stuff.
Let me know if you'd like to do something.
Cheers.