If you had him properly served, you can simply serve him by mail at the most recent address with an RJI and Request for Preliminary Conference. File both docs with the court and you'll get a conference with the judge.
The rates for child support do not change unless the legislator does so (which isn't happening any time soon).
The "self-support reserve" changes annually based on the federal government. You do not need to concern yourself with this sum unless the payor's income is below the self support reserve.
Additionally, the income "cap" changes every-other year and will not be modified until January 31, 2016.
Birth parents have a superior right to custody than all others. If there is some other person that you want to have custody of your child, make sure that that person (or people) are in the child's life in a VERY significant way starting right now. Document every aspect of their role in your child's life - keep journals, photographs, etc. Additionally, go to an attorney to draft an affidavit fully discussing your wishes. The affidavit may not be of any value but some judge may be interested...