When you say not ranked, do you mean not in the top 10, top 100, top 1000, etc? The site in your sig only has a little over 300 inbound links so depending on the conpetitiveness of your keywords you will need to aquire many more inbound links in order to rank well.
Okay, now I used the following site http://www.shoemoney.com/serps.php and I came up N/A for all my keywords in google and N/A on some keywords in the other search engines. Do you happen to know if this query only lists the top 100, 1000? So, say I am site number 1001, would it come up as N/A or would it show a rank of 1001? Does it mean I am in the search engine, but not high in the ranking? Also, does changing/adding meta keywords have an adverse effect on a site?
What keywords are you targeting? You're using the same metatags and title on all of your pages, from what I've seen. You should vary this for each page. Lose the company name as well in title tag and metatags - unless you are Microsoft or Dell, noone is going to search for you by your site name *unless they are already aware of you*. Putting the site name in the title uses valuable space. You should naturally come up for the domain name in a search.
Make sure your Meta tags represent the keywords you are going after. If it is not a competative market you should be ranked for your keywords.