Please explain what you are trying to do. Do you mean you want to claim your brother as your dependent? Or do you mean you want to file a tax return for your brother---to report your brother's income to the IRS? And what software are you using? Are you using online or the CD/download? We cannot tell from your post.
**Disclaimer: Every effort has been made to offer the most correct information possible. The poster disclaims any legal responsibility for the accuracy of the information that is contained in this post.**