New York City boy - Radio Edits?

[Future Lover]

Blast from the past, but... Any help on why New York city boy had so many radio edits? And also, how and where to find them all?

UK Radio Edit 4:20
US Radio Edit 3:30
US Radio Edit #1 3:20 (the same one as on PopArt?)
US Radio Edit #2 3:45

So, the fourth one seems to be a promo-only. Was it released on a disc that's easier to obtain? Is there another one that I missed. Let me know!
P.S. This is nowhere near my favorite single, to make matters worse.