Work at Sprint or know ho stuff works there?

[hopalee]

I need your help, please! I pre-ordered and am planning on picking up my EVO tomorrow morning. I have a Pre that I was going to give to my niece, but it broke today. I took it into the Sprint store to have them look at it and they ordered me a new one. But now I just realized that this might pose a problem. Are they going to give me the new Pre after I've already activated an EVO?

Please help me, I only have a few hours to figure this out before I have to decide if I'm not picking up my EVO tomorrow!!