Seneca I suggest you simply edit your image to make it a bit smaller (Resize it).
I was going to try it for you but your link in your first post gave me site not found. Either your forum is temporarily closed while work is being done, or it's a temporary glitch on your host company server - very common.
Here's how to do it yourself. You would do well to learn this much as you'll be able to make other images to make your site look good
1. Download your header logo.
Rightclick your logo/ select Save image as, OR Copy image
Save into a folder you keep in your site folder for IMAGES.
If you use Copy, you can Paste it direct into an editor.
SAVE THIS as your original so you can rework it as many times as you want.
I use IRFANVIEW which is a nice free editor that does what I need. Easy to use.
www.irfanview.com
I just open Irfanview and Paste direct into it. Then Save the image.
If you used Save as, off the rightclick on the original, then open it.
You will see 1022 X 150 along the bottom.
Use CTRL+R on keyboard. Or Image (top toolbar) and go down to Resize about halfway down the dropdown.
In that box on the left halfway down you'll see
"Set new size as percentage of the original"
you can change the % shown from 100% to say 95%
(Make sure the little box under it is ticked to "Preserve aspect ratio" - it should be ticked but first time you use it best to check)
At 95% your graphic will reduce to 971 X 143 - the look is not affected.
I did this earlier for you, here it is @ 95% and 80%.
You might consider taking it down to 80% of current size. Like many designers yours works on a large screen because s/he likes computers. Doesn't think that the majority do not have huge screens so it will not work well for them.
80%
95%
Open these full size and save them with filenames that tell you the size (without the % symbol)
You then need to upload the smaller graphic to your site.
Your desigtner has put the image on another site called mindblowing.com
http://www.mindblowingidea.com/images/Logo3.png
It should really be on your site.
Anyway I have to close down temporarily while we change a light fitting electrics) back later.