Hm, while we don't have a built-in way to accomplish that without creating a whole separate E-junkie seller account, what you would probably want to do is instruct your "special" affiliates to manually add an extra query parameter (e.g., &abc=xyz) to the end of their affiliate hoplink URL. Any URL parameters that our system doesn't recognize would get passed through and attached to your landing page URL, where you could have your own, custom scripting that detects the presence of that extra parameter in its own URL and either redirects the buyer or modifies the page appearance accordingly.
