This release (1.3.1) of the Affiliates plugin allows you to create an Affiliate Area page at the click of a button.
This has been requested often and thanks to the support that the Affiliates plugin and its contributor releases have been given, it is now available:
Information for affiliates on the front end: show affiliates information about their referrals including totals by currency and referral status. But that's not all ...
To generate this, go to Affiliates > Options and press the Generate button. You will have a new page on your site titled Affiliate Area which includes a login form, affiliate registration form, information about an affiliate's performance and the affiliate's link as well as a link to log out at the end of the page. You can edit this page and adjust it according to your preferences.
Take a look at the FAQ as there's more detailed info about it.