Your band is signed to a major label, has been written about and has had its picture appear in a major magazine, and has received persistent and passionate praise from no less an authority than Paul Westerberg, the former leader of what many consider to be the best American rock 'n' roll band of the 1980s, The Replacements.All of this has to make you feel at least a wee bit successful, right?"No," says George Tutuska, drummer for Buffalo, N.Y., power-pop trio Goo Goo Dolls. "We're still playing in bars. And I'm far from being rich. In fact, none of us in the band has any money, and I consider