Please help with small error

When visitors vote on my site, this is what happens. There vote goes through, but this message is shown on the website.
www.accessbritney.net

Warning: Cannot modify header information - headers already sent by (output started at /home/cgnetpro/public_html/index.php:12) in /home/cgnetpro/public_html/poll/poll_cookie.php on line 21

Did you put the include code for poll_cookie.php at the very very very start of index.php like you were told to do?

No I didn't.
I was a bit confused. What was it again?

Look in your index.php file and you will see the code that looks something like

<?php include('/home/cgnetpro/public_html/poll/poll_cookie.php'); ?>

Thats needs to be the very first thing in index.php

Thanks. Can you help me out with one more thing?
I also noticed when viewing results or making a vote that the words space out a lot and they are scattered all over the poll. Have any idea why?

Which words?

All of this in the poll is scattered all over, when you vote or view results.
By the way, is there a way to have someone vote or look at results without the page being reloaded?

Yes. No questions asked. 12
No. GM was enough. 0
I'm not sure. I guess so. 0
I just want to be surprised. 0

Total votes: 12

Got a link so I can see?

Yea, just go to www.accessbritney.net.
Once your on there, just scroll down on the left side bar. You can't miss the poll. It's in black.

Make sure you vote or view results to see what I mean.

Edit the poll and change the colour used for each answer. It should make more sense then.

I don't understand. There are no other options. I went into both General Settings and Templates.

When creating the poll you can specify what colour to use for each answer. Is there no way to edit existing polls?

I can't find it. Can you tell me the exact location. I'm in the admin controls.