Goo Goo Dolls Reveal Lessons Learned On Warner AnthologyBy CARLA HAYPublication: BillboardDate: Saturday, June 2 2001 Looking back on the past can be easier than looking ahead to the future, according to the Goo Goo Dolls' lead singer/songwriter, Johnny Rzeznik. So, to whet people's appetite for the rock band's next studio album, the Goo Goo Dolls have gone through their back pages to offer What I Learned About Ego,Opinion, Art & Commerce (1987-2000)- a collection of the trio's favorite previously recorded songs that weren't hit singles. Due Tuesday (29) in the U.S. from Warner Bros., the albu