Two Classes, Same Unique ID

[ErinRigh]

I have been spending an exorbitant amount of time coding in the Ultimate Gladiator Class from TPK Games. I am about 20 hours in, and I took a break to help TobyFox, get the D&D conversion stuff ready and thus dloaded his Dark Sun files

Now I have two Gladiator Classes with the same unique ID (cGladiator), I don't want to have to change my ID because it is tied to about half of a list of 150 or so custom abilities, and I can't ask Toby to change the Dark Sun one, so what I'm asking is;

Is there a way that I can have my class overrule his, so that the program ignores his and uses mine? I don't want to lose the rest of the Dark Sun stuff, but I don't want to waste my work either?