Adding Tabs To Your Blog

I think it's cool how some peoples blogs have tabs that link to different pages. I've been wondering how I can add them to my blog too. I'm slightly computer illiterate, but surprisingly, I found a blog that not only explains how but also makes it so simple that even I was able to figure it out what to do with no problems! I'm going to go back to find out how to align them on the left instead of in the center like they are. http://www.reallifeblog.net/2007/09/how-to-create-menu-bar-for-blogger.html is the link, if anyone who doesn't already know, wants to learn how!