I have tried to go through the .mob file threads but they make my brain hurt, so sorry if this is answered in there somewhere. I am simply wondering what you need to view / mod a .mob file?
Currently there is no tool released that would allow you to view or make modifications of the MOB files. ToEE Mod Studio Beta 1 has a very very basic level of support for analyzing MOB files (proto ID and object type only), but I don't recommend you to use that tool since it's buggy and (over)complicated. More detailed MOB support will be added in the future tool releases, you can be sure about that. - Agetian