That might of sounded a bit insulting but actually take his advice. There is no magic tool. Fuck, if it really told you what keywords are profitable then wouldn't you think everyone will just spend $90 to become a zuper duper affiliate?I'm new here but in the past couple of days I've been active I've seen more retarded people posting more retarded crap than I care to think about.
Just buy the fucking thing you cheap bastard. If you can't make the money without it to afford it then you're definitely not going to make the money when you do have it. None of this software is a "magic button" to solve all your problems.
/rant
The best "tool" you're gonna find is this forum. Just get use to the dicks and you'll find some nice info.