Looking for template condtional for thread starter id

[paintballer.ie]

Hi there,

I am looking for a conditional to show something like the following.

<if>thread starter ID is this, then show this code

else

thread starter ID is, then show this code''
</if>

Basically I have two admins and I want to show two different banners in the post bit depending on who created a topic.

If any one can advise me, that would be great.

Regards,
Richie