PRIMARY OBJECTIVE To determine the percentage of patients with high risk neuroblastoma in first or subsequent partial response or better, or with microscopic residual bone marrow disease, who demonstrate an immunological anti-tumor response at any time during, and for up to 12 months from initiation of, treatment with subcutaneous injections of autologous neuroblastoma cells, genetically modified by adenoviral vectors to secrete interleukin-2 (IL-2) (autologous neuroblastoma vaccine)