I didn't read all 12 pages of posts, but what are people supposed to say to the guy? Plenty said "not a chance", which is fair enough, and others answered his actual question, which was "what should I do first?".
He can't really win here (not that he deserves to "win" anything). On the one hand, he behaved appallingly and has no right to expect anything. On the other, if he made no attempt to offer support to his child at all, he'd get blasted for just f*cking off. Obviously, he has a legal and moral obligation to provide financial support to his daughter. He wants to set things in motion to achieve that. When he has demonstrated his reliability and ability to stay out of trouble and hold down a good job (and apparently he now has a masters degree, as opposed to not being able to read or write very well when he was convicted, so he has a chance of securing employment), he can start testing the waters about contact.
I don't see what's so bad about his question. He has no right to walk away and never be heard from again.