one site has images and banners over text, but the sites should convert with targeted traffic. this means keyword related traffic.
You do need to get more specific with your keywords.
use this tool to see how many searches per day they have for any specific keywords
Free Keyword Suggestion Tool from Wordtracker
It is free and you can also download this keyword tool free at
Good Keywords - Find the best keywords for your web pages.
Buying traffic only works if it is specificaly targeted, like google adwords, but this is expensive.
Take a little time and learn how to do seo and within 3 months with 1 or 2 hours a day, you will start getting more sales.
You need to keep the sites specific, and competing against download.com is not a good idea.
this ebook will teach you the basic principles of seo. use articles to build links instead of reciprical links, so stay away from linkmetro.
And there is no reason to buy the software for a few sites. you do not need them.
This is a branded ebook with affiliate links, they are not mine, but just warning you not to buy anything, you do not need it. but the onpage and seo information is fairly accurate, so it is a good learning tool.
Download Brad Callen's EBook SEO Made Easy Here
Just remember that the will to prepare to win means more than the will to win.