(Apologies to bump an old thread with what is probably a simple question/answer, but I've spent considerable time attempting to figure this out and came to the conclusion it'd be faster to just ask.)
I entered the cheats, moved the texture files to the plugins folder (I've done arena texture mods before), but the PWG textures don't load. I'm confused by the naming convention of the PWG textures as they don't have the "WWF No Mercy" preface of all texture files and they don't match the actual textures they'd be replacing (so I wouldn't expect them to load). Assuming I may have ventured into the deeper end of the modding/hacking pool that is not as simple as dumping a face, doodling on it, and re-loading. :-(
Anyway, the arena looks awesome (hence why I am requesting assistance), and I'm looking forward to adding it to my deathmatch save.
Thanks for any assistance.