Trying to remove header for just one sidebar box

I installed my authorize.net seal in my sidebar, and I seem to have 4 issues.

First of all, I need to get rid of the red header bar in just the authorize seal box, but I don't know .php coding to take it out.

Second, it's not centered, can someone tell me how to center it.

Third, the sidebar box doesn't seem to be large enough, I need to increase the size. I also have to put in a Comodo button, ideally I would like for both of them to be in the same box.

And fourth, I need to move that box up so that it aligns with the same vertical spacing as the boxes above. I'm afraid when I remove the header that I will have a gap where the header was.

The link isn't clicking to authorize.net, but thats because it's set up for my real site, not this demo site. I've worked forever building this cart, I'm finally coming down to the wire with it, it's just a matter of tweaking. I appreciate all the help I've gotten from this forum, you all have been so good to help me.

Thanks in advance for any help you can offer me...

redkapworkwear.com/demo

1. you could always add the following rule to the bottom of your stylesheet

#authorizenet h3{
display:none;
}

2. again with the css

div.AuthorizeNetSeal {
margin-left: auto;
margin-right: auto;
}

3. the sidebar box should automatically stretch downwards to accommodate the commodo seal

4. The code in one should take care of that

5. you need to go and remove these files as you seem to be loading 2 versions of each (look at your source code)

includes/templates/cherry_zen/css/style_imagehover (2).css
includes/templates/cherry_zen/jscript/jscript_imagehover (2).js

Thanks so much for helping me. I'll take out my duplicate file and implement what you told me to do.