This is a great tutorial on the features of wordpress and setting up your website pages.
You're squeeze page should pop out and have a professional look to convert more visitors into subscribers; one recommendation is to create a large sub-header with a promotional message, then include bullet points detailing why and how your product can do what was stated in the sub-header, then include a call to action(one example is "I could be taking this down in the next few days so order now") . Click here to learn about the different types of squeeze page designs and why they work and here to learn how to make a great squeeze page. The confirmation page should be a simple thank you to your visitors for subscribing and asking them to check their email to confirm. For the download page, offer a free gift related to your niche. To upload files to wordpress just go to the "media" tab and select upload(you will get a unique URL for your file). a great website for free ebooks with resale rights is Seymour Products, but I would recommend using Odesk or Elance for some high converting PLR content(this will cost some money), or you can just offer a product of your own. To add a nice looking download button, paste this code on your page(replace with your own url's): " <a href="url of your ebook(this will be dispayed when you upload the file on the media tab) e.g http://yourwebsite/wp-content/uploads/2015/02/19_your_ebook.pdf><img src="where you placed the image in your website e.g. /img/downloadbutton.jpg" alt="downloadbutton"></a>".
After creating your pages, set the squeeze page as the front page(Click on "Settings => reading" then check "a static page" and selct your squeeze page). Also change your permalinks for better SEO by going to "Settings => Permalinks" and check the option "post name" (this will change your page URL to your page name). Now its time to get an autoresponder; I would recommend Aweber or Getresponse (these services are for building your list of subscribers and creating follow up messages to promote future products; I personally use Aweber). Create your list with your email address, name, and name of your list(name it something relevant to your website). Create an Opt-in form on any of these services (this is where your visitors sign up) and link it to your confirmation page url (to add the Opt in form on your website, select "create sign up form" in Aweber/Getresponse, personalize your Opt in box, select "custom thank you page" and enter your confirmation page URL; in the final step, copy the raw HTML code, then go to "pages" on WordPress, click "edit" on squeeze page, hover down to "Opt-in Options", check "activate Opt in" and copy the HTML code in the "autoresponder" section); after this, choose "list settings" in your autoresponder and select "confirmed Opt in". customize your confirmation message and copy your download page in the "success page"box, where they will be sent to after they confirm their email address and you're good to go!
In your autoresponder there is an option to create "follow-up messages" (these are messages that will be delivered periodically promoting your products to your subscribers). Include a good subject line to make sure it gets opened and try to set a feeling of trust and friendship with your subscribers. You can either choose to give valuable information and then promote your affiliate product at the end, or talk about your affiliate product that you will recommend in that email and why they should purchase it. Try to keep your subscribers engaged so that they expect another email from you soon. Click here to learn how to make great follow up messages.
Some useful advice after gaining significant subscribers is to make a separate list called a "buyers list" in which you will include all the people who have bought from you and the current list will be known as the "freebie" list. What this does is you can use monetization techniques and cpa offers to convert a freebie into a buyer, while you promote recommended products to the buyers list as they will be more responsive to buy.
Now that your webpage is up and running, you need to take ownership of the site in the large search engine's. Visit, Google Webmaster's, Bing Webmaster's, and Pinterest Site Verification to get your website verified and improve it's visibility(these sites explain how to verify). I would also recommend to submit your website to various search engines using these free tools: Submit Express and Entireweb.