The purpose of this study is to assess the safety of 131I-anti-B1 Radioimmunotherapy when combined with high-dose BEAM or BEAC chemotherapy and hematopoietic stem cell transplantation. The study will also compare the difference in response rates and time to treatment failure between historical control patients receiving high-dose BEAM or BEAC chemotherapy with autologous hematopoietic stem cell transplant and patients receiving radioimmunotherapy and high-dose BEAM or BEAC chemotherapy with autologous hematopoietic stem cell transplant. Patients will receive escalating doses of radioimmunotherapy with anti-B1 radiolabeled with 131Iodine, high-dose carmustine, etoposide, cytarabine and Melphalan (BEAM) chemotherapy, and autologous hematopoietic stem cell transplant.