[Bellardia]

My guess (Similar to the first post on all pages mod) is that you add an extra column to the thread table and store who created the thread inside it.

Edit - Silly me...thread starter is stored in the thread table...not sure if it can normally be accessed though, maybe globalize it and then use a conditional?

Access the variable inside the postbit with a conditional.

Edit again.. Solution!

Find in postbit

<!-- sig -->
			<div>
				__________________<br />
				$post[signature]
			</div>
		<!-- / sig -->

Replace...change code to fit needs

<if condition="$post['signature'] OR $thread[postuserid] == $post[userid]">
		<!-- sig -->
			<div>
				__________________<br />
                <if condition="$thread[postuserid] == $post[userid]">
                	testing..
                </if>
				$post[signature]
			</div>
		<!-- / sig -->
		</if>

The if conditions may seem redundant since there's two...but the catch is if the user doesn't have a signature it won't post him as the thread starter regardless of if he is or not.