So in my google search for how to install a Grab my Button, I found this Mom's blog that explains it pretty well:
WHAT TO REMEMBER: Your image MUST first be loaded up to a site like flickr.com
I uploaded my image to flickr.com, and from there, I went to my image to get the CODE (not the link Url)
2). Replace her image code, blog and title urls with your own.
It takes some focus, but it's worth it. Then we can all do a link exchange!
Let me know if you have questions!