Hello, can you please help me to get rid of grey line under the images in the header? And place search box and feeds in the logo area next to title? Thank you.

www.myfavoriteflowers.com/blog

That link redirects - fix it or be deleted as a spammer

Strange...I just checked and it comes to my blog without any problems

http://www.myfavoriteflowers.com/blog/

The blog name is Forever Inspired by weddings and flowers.

The gray bars are a background image. See ATO>Body, Text, & Links and change the background line to

background: #fff;

The search box and feeds can be repositioned with CSS but I don't see it on your site.

What I meant was you can use CSS in ATO>Add HTML/CSS Inserts>CSS Inserts to reposition the search box. But all I see is the widget search box. I think if you...
1) Go to ATO>Style & edit Header Area and set the Show Search Box to Yes
2) Go to ATO>RSS Setting and set any Show icon boxes to No
3) Use the code below in ATO>Add HTML/CSS Inserts>CSS Inserts and modify as needed for you site
You should at least be on the right track.

.searchbox {
top:181px !important;
position:relative;
}