menu intergration problem

i have intergrated punbb with a html template fine using the main.tpl

now my problem is, i cant add a menu as the menu screews the site up..i have posted in the troubleshot section and recived some help...but i cant put the menu in!

if i put the code

.pun #brdmenu {
    position: absolute;
    left:250;
    top:231;
    right:252;
}

it mucks up on IE 7 and looks a bit like [/img]http://www.marine-hunters.co.uk/uploaded/menu.GIF[/img]

and if i put the code

<div id="punwrap">
            <div id="pun<pun_page>" class="pun">
            <pun_navlinks>
            </div>
          </div>>

it alligns the same at the forum, which is not what i want, i want it to take up the full width, without changing the whole paddind