I'm a total noob. Then why bother with redirects? I thought the point was to hide things from your affiliate.
the affiliate net sees where the last click was to bring someone to them. the redirect hides you from the person clicking. for instance, if you put a link in your ad that says
www.joeshmoe.info or whatever and that goes to a redirect with your affiliate link, they will never see or know you as a middle-man, and go right to the offer. it looks better than to click on a link that looks like zyx.dfdf.info/id=454545 .
yes it can hide things from your network as well, but not that way. they will still see the refer from the last click, and not from a programmatic redirect.
if you make the redirect just a page that says "click here to go to xxxx" or something like that, THEN the traffic to the affiliate will look like they came from your redirect page, and not from the email link. because they click the email link first which brings them to your redirect page. then they click that link second, to the last clicked link sending to the affiliate is from your redirect page.
if this clears things up for you (or anyone else) feel free to hit that little rep icon for me up top there

oh hell, its christmas, just keep hitting the thing repeatedly a whole bunch of times. one millionth click wins! any prize between this tick tack and this eraser (yes a quote from the movie "the jerk").