As part of its effort to become a top-ten mortgage lender, Wachovia Mortgage is implementing an automated, Web-based loan origination system capable of serving far more users at once than the company’s previous system. “We need to have a system in place that can support the growth we anticipate,” said Wachovia spokeswoman Jennifer Darwin. The upgrade has been piloted extensively and will be fully implemented by the end of the first quarter of 2006, she…