1- Use the tracking link tab to grab your affiliate link
2 - Put your tracker postback on the postback tab
3 - Leave the redirect tab empty , it's just for redirect rules for geos outside what the offer targets.
4 - Sometimes you can't just fake the user agent through these extensions. You will need a device with touch support etc. If you want to test it's best to ask your AM to check if the link is fine but 99.9% it should be good.