I did some looking around and the info that I found told me that the h1tag tells the search engine what my pages is about...question...doesn't the description accomplish this? and in what instances would you use the h2-6 tags?
Best advice I can give you is to find a good html tutorial site. If the one griz gave you isn't enough then search for a few more.
You should be using bhw to learn about things specifically regarding marketing techniques, and website seo. You should also have resources to learn basic html and css, if you don't already. If you are using wp then you should also be searching the wordpress support forums. If you have a oscommerce site you should also be looking through the oscommerce forums.
just search google for html tutorial and you will find thousands of good sites to give you the info you need. Once you learn a little from the tutorial sites, then a lot of the seo advice you've been reading on bhw will become clear to you.
This isn't a flame, just some good advice. Different forums are good for different info. If bhw is the only forum you're trying to learn everything from then you aren't going to learn nearly as much nor as fast.
edit - here is a thread that gives a little info about what you need in your keywords tag and description.
http://www.blackhatworld.com/blackh...73-stop-stressing-over-keywords-meta-tag.html
Be sure to check the links that are in that thread. It explains that while you want to include the keywords and description metatags in the head section. It is much more important to include the keywords in the body of your html. You want to make sure you do both. The meta tags go in the head section. The header tags your wondering about go in the body. They let google know which terms within your content should carry more weight.
I just looked up a good site for you to learn html
Try this out, here is the contents page for the site.
Code:
http://www.w3.org/TR/html401/struct/global.html
It explains every element you need to know and step by step how to put it all together.
The info your asking about right now is in section 4.4 and section 5.5 on that site.