Trouble With Blogger

Well, it appears that I'm smart enough to change the template and colors and page elements of my blog, but somewhere in the process I've managed to do something wrong. I can see that there is one comment on my newest post, but I cannot open it, no matter what I try. I also cannot access any links on my blog. So, if anyone has any suggestions, I'd love to hear them. Until then....I'll keep trying when I can.