<p>Here’s a link to the complete FAFSA instructions for 2010/2011, which should answer your questions:</p>
<p>[Completing</a> the FAFSA: Financial Aid from the U.S. Department of Education](<a href=“http://studentaid.ed.gov/students/publications/completing_fafsa/index.html]Completing”>http://studentaid.ed.gov/students/publications/completing_fafsa/index.html)</p>
<p>Do your parents live and work in the US and file U.S. tax returns? If so, the line number for AGI differs between forms but is always called “Adjusted Gross Income”. If not, I believe you have to use a currency exchange calculator and the IRS website to figure out what their AGI would be in USD. If they are not required to file/pay taxes in the country they reside in, I’m pretty sure their income is just reported as untaxed income. If you care to provide more specific info, others can probably give you more exact answers.</p>