From what you said, I just thought you wanted to know whether it was a studio or live version and if it was available elsewhere or not. If I'm wrong, I'm sorry.
The copy of the "Jeremy Spencer" ALBUM I have does NOT have "Teenage darling" on it, it has "Teenage LOVE AFFAIR", perhaps this is the track you are thinking of?
All I know is that in order to play the STUDIO version of "Teenage darling" I need to take out the "Linda" single.
If there is ANOTHER STUDIO version of this song in existance, I am not aware of it.
Do let us know though if the studio version of "Teenage darling" is on the "Blues years" album which you are questioning as I haven't seen it but would be interested in hearing more about it so I could maybe find a copy of it on my own.
John