Sep 25--PRNewswire/AsiaNet NETWORK ACQUIRED... BROOMFIELD: McData Corporation has acquired fellow open storage network company, SANavigator, from Western Digital Corp, the company announced today. The company paid $US 29.75 million in cash to close the transaction, a media release said.POLYESTER TAKEOVER... HOUSTON: Kosa, the half owners of polyester company, Imasab S.A, will relinquish their stake to Koch International Equity Investments BV and Koch Equities, a company statement said today.BETTER SECURITY... SINGAPORE: A new security network developed by Netscreen Systems, would enable enterprises and service providers to build networks with better firewall and VPN resilience, the company has announced. A "full-mesh" network design would allow for "active-active" load sharing of traffic between devices to increase performance, a news release said.PHARMACEUTICALS ADDRESS... CAMBRIDGE: Millenium Pharmaceuticals Inc will deliver a company overview at the Bear Stearns Health Care "Virtual Conference", the company announced today. The address would be webcast live, accessible via the Investor Relations section of www.millenium.com.EXECUTIVE APPOINTMENTS: DEARBORN: Visteon Corporation today named Dr. Heinz Pfannschmidt as president of the company's European and South American operations. "He brings valuable perspective from the European automotive market and strong relationships with vehicle manufacturers -- both of which are important to Visteon's success. We look to him to carry forward our customer-facing structure and to help Visteon's strategic direction", ceo and president, Mr Michael Johnston said. (AsiaNet is a consortium of leading news agencies distributing unedited, translated press releases for worldwide clients. Contact: www.asianet.com.au for full-text versions).