If you're under Firefox with the Stylish addon you can fix the widths pretty easily until there are options besides "Leadwerks Wide Skin" in the box at the bottom.
Just rightclick the Stylish icon > Write New Style > For Leadwerks.com and then drop something like the following into the box.
@namespace url(http://www.w3.org/1999/xhtml);
@-moz-document domain("leadwerks.com") {
div#admin_rightbar, div#wrapper, div#title_container, div#adminbar_rightbar, div#content_rightbar {
min-width: 1000px !important;
}
}
(Yes I was too lazy to put it up as a downloadable style. Sorry )
