Trying out the affiliate plugin for the first time and it seems I found a bug.
On line 458 of affiliateadmin.php it reads:
$url = get_option('home');
Shouldn't this be the home page of the main site, using get_site_option or get_blog_option (1,'home')? Right now it is providing an affiliate link that points to the person's own blog (or whatever blog they are viewing as they edit this setting, I guess?)