Reply and NewThread Button

[Puschl]

hi everybody,
i try to change the reply and new thread button against new ones...
but when i try to edit for example the showthread template i did not find any
image source code.
just something like this :

		<vb:if condition="$show['largereplybutton']">
			<a href="{vb:raw $vboptions.vbforum_url}{vb:if "$vboptions['vbforum_url']", '/', ''}newreply.php?{vb:raw session.sessionurl}p={vb:raw LASTPOSTID}&amp;noquote=1" 
class="newcontent_textcontrol" id="newreplylink_top"><vb:if condition="$show['closethread']"><span>+</span> {vb:rawphrase reply_to_thread}<vb:else />{vb:rawphrase closed_thread}</vb:if></a><a href="newthread.php?{vb:raw session.sessionurl}do=newthread&amp;f={vb:raw thread.forumid}" rel="nofollow" class="newcontent_textcontrol" id="newthreadlink_top"  style="margin-left:10px;"><span>+</span> {vb:rawphrase post_new_thread}</a>

anyone got a hint how to get new buttons in the templates?

greets