LOL, no problem...I'm also a diehard Laker/NBA fan (Basketball in general, actually), so this was posted up at a Lakers forum I frequent. Just like you, I tried googling, but could not find any direct links to the pictures...But of course, this being the internet, someone was able to find it.
What's awesome is that they provide the different sizes of the picture, so I just downloaded the original size, cropped, and re-sized for the EVO specs.
Only thing is, the Team specific pictures are in portrait mode and I still haven't figured out a way to make portrait pictures work on the EVO without having to frame the entire picture.
The only program that I've found that's been able to do that is WallSwitch, where it automatically determines if the picture needs to be cropped or not. Other than that, I haven't found a program that'll allow portrait sized pictures to work.