Think about what kind of impression your pages are going to make on a search engine.
If you were a search engine, and you found a site where the title tag and description for every page of the site were exactly the same, would you rank any page on that site above any page on a site where all of the pages had unique titles and descriptions?
You have multiple pages that offer little or no information, and you’re linking to those pages prominently. For example, http://www.jackpotavenue.com/casinoguidequestion.php has 2 sentences. http://www.jackpotavenue.com/promotions.php says the page is under construction. You shouldn’t include links to those pages from your site menu or link to them until the pages are actually ready. Some people go for a minimum word count of 250, some shoot for 500 words, but I think that as much detail as you can include is better for your rankings.
If you were a search engine and crawled a site where several pages were under construction or didn’t have much content on them, would you rank any page on that site higher than a page on a site where all of the pages have significant amounts of unique content on them?
The text on some of your pages is clearly advertising content that you received from the casinos. (i.e. duplicate content) For example, “AusVegas delivers all the fun and excitement of Las Vegas” is indexed on at least 28 other pages in Google. All of your copy should be original and unique.
If you’re a search engine, and you find a website with text that’s word for word exactly the same as the text on 30 other web pages that are already live, how likely would you be to rank this page above any of the others?
If you think about all your website decisions from the perspective of what you would do if you were a search engine, then most of what you should do becomes obvious.