[JamesC70]

Change the column percentages to fixed pixels. The "editor box on left" code earlier in this thread has comments to help you find where to make these adjustments:

<td width="50%" align="center" class="alt1"><!-- set editing column width -->

Adjust the "50%" to a pixel value roughly 2/3 of the width of your style. Then, go further down the template and adjust the other side:

<td width="50%" class="alt2" valign="top"><!-- set options column width -->

Adjust this to roughly 1/3 of the width of your style.

So, for example, if your style is fixed at 800px wide, set the first one for 533px and the second one for 267px:

<td width="533px" for the first value
<td width="267px" for the second value

Adjust the px values until you're satisfied with the column widths. If necessary, adjust the editor box as well:

[OPTIONAL CHANGE]
Open Style Manager -> xx Your Style Here xx -> StyleVars -> Message Area Width

Change this to somewhere in the 330-400 range, then adjust as desired.

Please press Install.