Blog Issue

Hi there, I've set up the blog for http://clienttest9876.com under the the "Settings" "Reading" page so that the Blog is the post page, each blog shows it's full length, and it can show 10 blog posts at a time. But...I get a "read more" at the end of the blog. I'm wondering how I can stop that from happening. Also, when I click on the "Read More", I get this message "Bad Request. Your browser sent a request that this server could not understand." Lastly, I don't want the header image to show on this Blog Page. It doesn't show on any other page except the front page, so not sure how to take it off of this page? Thanks so much! Abby