Let me count the "Wills"

[GarboSpeaks!]

Can anyone help me w/ a head count of how many versions of SYW are out there? I was in a store about a month ago, and heard a remarkably different version. The bridge out of nowhere, semi-acapella as it is in the end, but w/out the kids singing...I swear I wouldn't make this up.
But the thing is, that when the versions come out...I am ALL over them, then usually store them away, and don't relisten. So am I just having a senior moment? Was it a different version, or something that is out there? In both my quest to beef up my CD single collection, and try and obtain several radio versions of this song, I have this for now. AND are some things one in the same b/w diff headers?

Say You Will Album Version 3:47
Say You Will Edit 3:42
Say You Will Single Remix Fade 3:49
Say You Will Single Remix Cold 3:36
Say You Will (I believe) Surround, Center Channel, and Wall of Sound mix. These I am unsure of NOT being the same as above. Then if someone says Single Fade, is that the same as "Single REMIX Fade?" I am so confused. Well, not really, but perhaps w/ the Ledgie's help, I can narrow that ONE elusive mix down! Thanks a bunch!