Help!!!

I need your help. I tried changing my background on my blog and I did something and now it is back to the original template and I no longer have an option to add on any page elements, not to mention I lost all of my add-ons like peoples blog addresses. So if you can lend me some wisdom on this matter since I am not good with computers, that would be wonderful. Plus if you could send me your blog address again, that would be great too.

I going crazy trying to figure it out!!!!