The investigators have grown neuroblastoma cells in the laboratory and put into them two specially produced mouse viruses (retroviruses) that carry the lymphotactin and the IL-2 gene. These lymphotactin and IL-2 genes are meant to help the immune system fight the cancer. The modified cancer cells will be injected under the patient's skin. There will be four shots. The second and subsequent shots will have ten times as many cells producing lymphotactin as the first. The patient will normally have these shots as an outpatient. Depending on response (if the patient's cancer has stayed the same or gotten smaller), the patient may be able to have four more of these shots.