I've worked on an alternate sollution to fix the problems some people have in Sound Commands (again, yes)... please, everyone download the latest debug version of Messenger Plus! at http://www.msgplus.net/temp/MPTest.zip.zip
and tell me if the sounds are fixed or, at least, if they are still working for you. Note that this version also fixed the bug that allowed people to use sounds in their name (and the sounds have better quality).
I'm waiting for your answers! I'd like to release a good patch before next friday.