Literally another 10 seconds of googling and came up with this Vl Turbo ECU [Archive] - calaisturbo.com.au
Well, this is the VL section and you asked about the rb30 ecu's and the numbers for autos and manuals. So I thought it was quite relevant. Tried putting the numbers into Google?
Maybe you should have read that the last reply to this thread was 3 years ago. And maybe you should also look at the ECU in the picture that has a giant Nissan logo on it.
As far as I can tell the VL ECUs don't have any logo on them. Regardless, the link I posted matches the part number exactly (and says what the ECU is for) so one would assume that it's from Nissan anyway, not that it really matters if it's from a VL or an R31, would wager that it would still work in either.