 - Arm II Interferon alfa, interleukin-2, and fluorouracil combination therapy: Patients receive interferon alfa SC on day 1 of weeks 1 and 4 and days 1, 3, and 5 of weeks 2, 3, 5, 6, 7, and 8. Patients also receive interleukin-2 SC twice daily on days 3-5 of weeks 1 and 4 and once daily on days 1, 3, and 5 of weeks 2 and 3. Patients then receive fluorouracil IV on day 1 of weeks 5-8. Treatment repeats every 10 weeks for up to 2 courses in the absence of disease progression or unacceptable toxicity. 