NY -- Standard&Poor's CreditWire 3/4/98 –- Standard&Poor's today assigned its triple-'B' rating to the Illinois Development Finance Authority's revenue bonds series 1998 dated March 1, 1998 due July 1, 2018, issued for Community Rehabilitation Provider Facilities Acquisition Program. At the same time, Standard&Poor's affirmed its triple-'B' rating on the program's $74 million revenue bonds. The rating reflects the strengths of the pool structure, including: -- Overcollateralization through a special reserve fund; -- Mortgages on property acquired or refinanced by the bonds and a pledge of each provider's gross revenues and debt service reserve fund; -- A state intercept mechanism to support both debt service payments and debt service reserve fund replenishment; -- Diversity of