Other participants who do not have the CD20 marker will start Course 1 with cyclophosphamide given by vein over 2-3 hours every 12 hours. This will be given for 6 doses over 3 days (Days 1,2, and 3). Pegylated asparaginase will be given by vein over 30 minutes on Day 1. Adriamycin will be given by vein over 24 hours on Day 4. Vincristine will be given by vein over 15 to 30 minutes on Days 1 and 11. Dexamethasone (a steroid) will be given by mouth or by vein on Days 1 to 4 and 11 to 14.