I dont know how to explain it but I did my own research and taught myself how to do everything I have on my blog. Here is a link to a site where I learned how to make a button for my blog:http://a-heart4home.blogspot.com/2009/04/blog-button-with-text-box-for-code.html
Thank you for the info MommyKatie!
If you want to add someone elses button you copy the code that should be listen below it. Then on your page go to design and click add a gadget. Then click to add html, paste the code into that spot and the button should appear. If this doesn't make sense or you want to put it somewhere other then on your side bar feel free to email me at sarahkathleenm(at)gmail.com