I am new to Bravenet and have purchased a domain a created a down and dirty website. I would like to list our domain with the major search engines so our new site can get placement. How do I do this? Also, how do I create keywords on my page so that when it is spidered, the search engines will give me placement according to the keywords I have chosen?

You only need to worry about Google, MSN and Yahoo

Go to their web sites and follow their registration instructions.

You cannot specify particular keywords to search engines (that stopped in the last century due to abuse) they index the content on your pages. Just write good content.