... If you are looking for a different answer than I gave you last time, you won't get one. I did think it would explain what the error was, why it occurred and how to get rid of it, but judging by your reply in that thread, you didn't even read it (why were you uninstalling character mods? Those have nothing to do with the problem)...
This post was made from free-roaming, 100% chlorine-free bleached, CFC-free and non-genetically-modified bits.
Can't actually remember why I uninstalled non-accessory mods, but most of the 20-30 mods were accessories for Saiyans (which the problem mod also happens to be). Still can't install it, even though other accessories install just fine.
EDIT: Nevermind, just went and removed the light-brown tails and it worked... typical, all those accessory mods I removed and apparently none of them were attached to the part of the body the Saiyan tail is attached to. Just my luck.