OUTLINE: This is a dose escalation, multicenter study. Patients are stratified according to prior treatment (high dose chemotherapy with transplantation vs low dose chemotherapy with radioimmunotherapy (RAIT) vs low dose chemotherapy without RAIT). Patients receive filgrastim (G-CSF) subcutaneously (SC) daily for 5 days and undergo harvest of peripheral blood stem cells (PBSC). If an adequate number of CD34+ cells are not harvested, autologous bone marrow may be used. Patients undergo pretherapy imaging with indium In 111 monoclonal antibody MN-14 (In111-MN-14) IV on day -7. If at least 1 tumor site is targeted, patients receive high dose yttrium Y 90 humanized anti-CD22 monoclonal antibody LL2 (Y90 MOAB hLL2) IV for up to 50 minutes on day 0. PBSC or bone marrow is reinfused approximately 7-14 days following infusion of Y90 MOAB hLL2. Patients also receive G-CSF SC daily until 3 days after blood counts have recovered. Cohorts of 3-6 patients receive escalating doses of Y90 MOAB hLL2 until the maximum tolerated dose (MTD) is determined. The MTD is defined as the dose preceding that at which 2 of 6 patients experience dose limiting toxicity. Patients are followed weekly for 2 months, monthly for 6 months, and then every 6 months for 5 years.