PBEM Security Question

[Wdll]

So, how can this problem be passed for someone that doesn't have the CD version? (not me, I have it). If a PBEM game doesn't end and a new starts at the same slot, what's the safest way to overwrite the "abandoned" PBEM game? It shouldn't be to just copy the newer files over the "abandoned" game since of the problem mentioned. It would be nice to have a "delete pbem" game but then I guess that could be abused.