Reinstall Toribash.
Now, before you reinstall, make a new folder and put it on your Desktop so you can easily find it. Put all of your replays in that folder(to serve as a back-up).
After you have reinstalled, go to the Toribash folder and rename the replays folder, you can change it to replayBACKUP so you know that it is contains the original replays that Toribash has. Now, put the folder where your replays are contained and put it in the Toribash folder. Rename it to "replay".
Now, all the replays you save will go there. You've completely separated the original replays from your own replays.