Well the custom loads up over top of the original one so any descrepencies will be fine being dealt with in stylesheet_custom.

As for those changes, they helped but it still is about 3-4 pixels too big (want it to have the same buffer as the other side). I believe the middle column inbetween #NavColumnone and #navcolumntwo but I don't know a name for it (can't find under my developers tool kit it doesn't say anything.

I think it would work if I knew the name of that middle piece and just set the width to a correct pixel length, but I just don't know the name of that middle box.