I am on a F-1 status since Aug 2006. I have been working full-time with my employer in NJ since Jun 2007 - present, on a CPT for the first 3 months, and since then on an OPT that expires Sep 2008. My payckecks have been automatically withholding social security and medicare taxes. Which tax forms do I file for federal and state taxes, and for the refunds that I qualify for? Thanks