Some things about GTA:
- The Rockstars Classics series seems to be unavailable from Rockstar site.
- Grand Theft Auto, as downloaded from Rockstar Classics, does not include any mission pack (namely London 1969 and London 1961).
- The second mission pack (London 1961) is freely available from Rockstar (see the icon flashing between UK flag and "Free"). It seems that London 1961 requires London 1969 to work.
I've uploaded to mega a bundle that contains Grand Theft Auto and London 1969. I don't know if it can be put here (is it abandonware?).