Patients receive yttrium Y 90 basiliximab intravenously (IV) on days -21 and -14, carmustine IV over 1-2 hours on days -7 and -6, cytarabine IV twice daily (BID) on days -5 to -2, etoposide IV BID on days -5 to -2, and melphalan IV on day -1. Patients undergo autologous hematopoietic stem cell transplant on day 0.