Also

* WorldCom Inc., which planned to emerge from the biggest bankruptcy in U.S. history this month, is seeking up to 60 more days to complete the restructuring because it needs more time to complete a financial restatement.

* Sabre Holdings Corp.’s Travelocity.com Internet travel agency said it would close a customer service center in Virginia and cut staff in San Antonio after contracting out some of the work.

* A federal bankruptcy court judge dismissed all claims by insurance companies in the Halliburton Co. asbestos settlement case, saying they had no standing to challenge the agreement.

* A bankruptcy judge cleared Adelphia Communications Corp. to negotiate an $8-billion loan package over the objections of a shareholder group in the troubled cable TV company.

* Silicon Graphics Inc., which builds computers that create special effects and graphics for movies and flight simulators, said it was in talks to sell its Alias software business to a private-equity investment firm.

* Burger King Corp. President Bon Nilsen resigned amid declining sales for the struggling fast-food chain. In a voicemail message to employees, Chief Executive Brad Blum announced the resignation “with mixed emotions.” The company had no further comment.