This is probably unrelated to the logo but LIJI, if you remember well enough, I know that on every version of AO on the PC Abe faces to the left - I think it might be reversed though on some versions like it is on the PS1:
Normal:
Reversed:
Ignore the graphical glitching on the PS1 version of my AO (the horrible yellow), but if your PC version had an Abe that faced the other way like this I'd be very interested too, even if it's a bit minor, it could open you up to a whole bunch of glitches and other things.
I would also very much like to dissect the .lvl file (r1.lvl) if you or anyone else still has this version of the game, for .lvl building and editing purposes. You might even be able to change the mines on other PC versions of the game to the black ones, or vice versa.
Very interesting though.