Damn...that was my first show too!!!
Anyway, I've done a little research and I found out that The Offspring toured with AFI and L7 in 1997, and Metallica toured with Korn in January of 1997 and Corrosion Of Conformity after that. I don't know if this helps or not. Their may have been other tours that I didn't find.
Thanks! AFI and L7 sound vaguely familiar to me but I have the ticket stub and I remember Offspring so I'm going with those were the opening bands.