[Lynne]

Please use the code tags when writing code in your post, it makes it easier to follow.

You say you created a plugin using the postbit_imicons hook location. Did you look to see where that was evaled in the code?

You have done nothing in your code to add anything to the postbit. Have you looked at any other modifications that add code to the postbit templates? I'd suggest taking a look at a couple and seeing how they did it. It will give you a better idea of how to get it done.