It's possible to have potential candidates register for your affiliate program without even leaving your site. All you need is the HTML code. Here's how you can find it:
First, head to your dashboard and click "your links" then select the Affiliate Registration Page iFrame HTML.
After that select and copy the code. You'll have to provide it to your website developer, and they should be able to assist you with embedding the link onto your site. Don't have a developer? A technical rep on your website platform may be able to help you out with embedding the code.
One important thing to note: If you've created a lot of custom fields then the form can get really long. If you find this to be the case, the height of the iframe should be modified. You can increase or decrease the height as needed but use 1600 pixels as your starting point, as it tends to fit most heights.