Newlsetter does not display correctly in Wordpress Post

Newlsetter does not display correctly in Wordpress Post

Hi all,
Could really use some help, I have followed the instructions to apply the html of my Mail Chimp newsletter to a post but it does not display correctly. I have also used KompoZer to edit the html and it shows up correctly on the KompoZer preview but as soon as I apply that to Wordpress it again stuffs up.

The alignments are incorrect and it is showing up with lines (obviously for the boxes etc). I have attached screenshots to give you an idea. Any help would be greatly appreciated!!

http://www.chimpexpress.com/components/com_agora/img/members/6924/The-MailChimp-Newsletter-email.png

http://www.chimpexpress.com/components/com_agora/img/members/6924/Wordpress-preview-from-ChimpExpress-HTML-import--1.png

http://www.chimpexpress.com/components/com_agora/img/members/6924/Wordpress-preview-from-ChimpExpress-HTML-import--2.png

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