nubfurlife's dashboard

hey guys, i was trying to add this comment system to this tumblr theme that originally didnt have one...everything was showing up fine and it seemed to be working...but the design looks REALLLLLLY GROSS.

heres the link to the page: http://voiceitlive.tumblr.com/

1.) how do i get rid of that distracting white line that runs across the entire page?

2,) when u click comments, the disqus comment box doesnt fit into the aligned area, its soooooo wide.

help plz!!!