ITALY SHOWS SEPTEMBER OVERALL PAYMENTS SURPLUS Italy's overall balance of payments showed a 919 billion lire surplus in September against a deficit of 1,026 billion in August, provisional Bank of Italy figures showed. The September surplus compared with a shortfall of 1,697 billion lire in September 1986. For the first nine months of 1987, the overall balance of payments showed a deficit of 1,921 billion lire against a 1,725 billion deficit in the same 1986 period. The central bank said Italy's one billion dlr Eurobond launched last month contributed to September's surplus.