Dont use the software. It could cause problems. The best idea is to do your own research across the web and read the various articles...that way you will learn. Google and Bing offer lots of information to webmasters about building quality websites. You might want to have a look here from google....
http://googlewebmastercentral.blogsp...h-quality.html
Study the pathways on your website, break down each pathway into sections and study it...how can you improve that pathway and so on. Google uses learning machines, neural pathways, etc.......in the end its got nothing to do with seo. I dont even have meta tags on any of my websites because its a waste of time filling them in. Create the right pathways and the serps will follow. Wish you the best of luck.