I copied all php files as you suggested and it works fine for everything else except for page wrapper width. For some reason I can't set it wider than 584px and i need it to be 614px.I even went to original css in your plugins folder (when update arrive i will change it again) but that didn't help either.
Bellow is example taken from firebug. First width value always remains the same and other width values bellow that are crossed.
width: 614px; (this has linethrough)
width: 614px;(this too)
background: none repeat scroll 0 0 #FFFFFF;
border-radius: 5px 5px 5px 5px;
box-shadow: 0 1px 3px rgba(0, 0, 0, 0.35);
width: 614px;(and this too)