REVISED UH-1 REGIMEN AND RADIATION THERAPY (stage IV BWT with focal anaplasia; stage II-IV BWT with diffuse anaplasia; stage IV unilateral WT with focal anaplasia; stage II-IV unilateral WT with diffuse anaplasia; and stage I-IV malignant rhabdoid tumor of the kidney; or DHPLNR with anaplasia): Patients receive vincristine sulfate IV over 1 minute on days 64, 71, 78, 85, 92, 99, 148, 155, 162, 190, 197, and 204 (weeks 10-15, 22-24, and 28-30); doxorubicin hydrochloride IV over 15-120 minutes on days 64, 85, 148, and 190 (weeks 10, 13, 22, and 28); cyclophosphamide IV over 15-30 minutes on days 43-46, 64, 85, 106-109, 127-130, 148, 169-172, and 190 (weeks 7, 10, 13, 16, 19, 22, 25, and 28); carboplatin IV over 1 hour on days 43, 106, 127, and 169 (weeks 7, 16, 19, and 25); and etoposide phosphate IV over 1 hour on days 43-46, 106-109, 127-130, and 169-172 (weeks 7, 16, 19, and 25). Patients also undergo radiation therapy.