Dude use hasoffers. As much as people bitch and moan about it, it's the best tracking system I've seen so far. In terms of interface, features, support - everything is totally outstanding.
The only "bad" thing about it is that it's fucking free to start with and instead of appreciating it, people badmouth it and link it to scam which is unfortunate.
Hasoffers has every freakin feature you can think of, in an affiliate network plus more.
And you're right, linktrust does look like a script from 90's. Their interface is so shitty, I can't stand it. And Hasoffers is total opposite - the best interface I've seen in the industry (besides Neverblue).