Buttons in thread window, how to?

[Flygye]

HI.
I want to know what template i need to change to make the changes

add new link to a new button in the window, where we write the text, like this window here, when you press the reply button for exemple. and how you put also the smiles visible on it



And there is any guide to explain the correspondence of the templates?

--------------- Added [DATE]1194452403[/DATE] at [TIME]1194452403[/TIME] ---------------

--------------- Added [DATE]1194452745[/DATE] at [TIME]1194452745[/TIME] ---------------

so doesn't anyone know how to do this?