This isn't the right place but I'll help you anyways.
Right click the replay and open it in notepad, you'll be greeted with a large quantity of text but the first few lines should look similar to this.
#!/usr/bin/toribash
#made with toribash-4.92
#SCORE 0 0
#WIN 0 Draigoon12 uke
VERSION 12
FIGHTNAME 0; [Event] Dos
BOUT 0; Draigoon12
BOUT 1; uke
AUTHOR 0; Draigoon12
NEWGAME 0;500 10 15 0 0 2 300 0 0 classic 0 0 100 0 0 0 1 0 2 0 0 0 0 0 0 0.000000 0.000000 -15.000000 0 0 0 0 8
Locate the lines that say BOUT 0; and BOUT 1; and switch the names, it will make Draigoon12 appear in Ukes position instead.
#!/usr/bin/toribash
#made with toribash-4.92
#SCORE 0 0
#WIN 0 Draigoon12 uke
VERSION 12
FIGHTNAME 0; [Event] Dos
BOUT 0; uke
BOUT 1; Draigoon12
AUTHOR 0; Draigoon12
NEWGAME 0;500 10 15 0 0 2 300 0 0 classic 0 0 100 0 0 0 1 0 2 0 0 0 0 0 0 0.000000 0.000000 -15.000000 0 0 0 0 8
And then save the file and reopen the replay and the changes should take effect.
If you have further issue with this feel free to send me a PM. Closing.