duplicating templates

[Charged]

Hi,

due to the design I have on my page and forum, I have an issue:

when you are viewing private messages there is an overflow cause of the user control panel being at the side

I have sorted this out on every other page that its occuring but not this one

this is due to the fact when viewing a pm it uses the same postbit template as the rest of the forum, so if i edit that the rest of the forum gets skewed

what I need to do is have another edited version of postbit which I can then call from pm_showpm

I tried to just copy paste it into a new template and change $postbit in pm_showpm to $newpostbit, though that doesn't appear to be the correct way of doing it

things are never as simple as you anticipate, any help would be great!