The slashes for windows line calling podbot mm (win32 addons/podbot/podbot_mm.dll) aren't a typo - I do have them so and metamod loads podbot mm correctly. But there is really a typo in that part You quoted, but not in that one concerning to win32, but in that one concerning to the amd64 part:
win32 addons/podbot/podbot_mm_amd64.so
should be of course:
linux addons/podbot/podbot_mm_amd64.so
Thanks for focusing me on that part - I'll fix it in the next revision of docs.
