STEVEHABS: V1 is buggered version of the hack with Evox, don't use it. V2 is a working version of the hack with Evox, so if you want the simpler Evox then go with this on. V3 is the latest hack, with the MXM dashboard. I like this because you can have custom soundtracks playing in the menu, and the actionscripting allows powerful customization of the dashboard. It also doesn't need an audio CD to boot the hack.
CoLdFuSioN167: It has to be 4920.
bwanaaaaa: Boot the hack using the savegame, then select Remove Audio Hack in the Audio Hack menu.
If that doesn't fix it, download the Slayers ISO, extract the files for C:, completely erase C and E, make new TDATA and UDATA directories in E, then copy the 4920 files from the extracted ISO to C:.
Make sure you use Craxation to extract the ISO, because other programs tend to skip some files, and you don't want to end up with a half extracted C:.