Other Visits: In addition to the main outcome assessment visits at baseline and weeks 26, 52, and 78, first morning urine samples for determination of Up/c, basic blood chemistries (BUN, creatinine, serum electrolytes and glucose) and hematology in the MMF/Pulse Steroids arm are also obtained immediately after randomization, and at follow-up weeks 2, 4, 6, 8, 14, 20, 32, 38, 44, and 65. CSA trough level, fasting lipids, serum albumin, and other blood chemistries are obtained at designated subsets of these visits.