[Lynne]

In postbit_legacy (and postbit maybe? You didn't say which you are using) you will find these lines:

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

And I think you are being directed to change them to:

		<!-- sig -->
			<div style="width: 500; height: 120; overflow: hidden;">
				__________________<br />
				$post[signature]
			</div>
		<!-- / sig -->

Back up your templates first as I have no idea if that will work since I haven't tried it myself. Also, note that he was giving example dimensions (the 500 wide and 120 height). You will have to figure out what you want that set to yourself.