Cecilia 3.0 is just not stable enough for a wide release. I dont have  
time to work on it right now.. but I eventually WILL get to it.
In the meantime, this MAC version is buggy but it does work:

ftp.musique.umontreal.ca/FTP_Musique/Cecilia-MAC

The truly suicidal amongst you may even try what I have under the  
Cecilia-PC branch.