Compile from source or download one of the binaries and replace your xbmc.bin with the one you downloaded. I'm not sure if XBMCfreak is on 10.10 (the link in the first post) or 10.4 the link I just posted.
Code:
GRANT ALL PRIVILEGES ON `xbmc_%`.* TO 'xbmc'@'%';
IF you have a mysql problem, find one of the 4 dozen threads already open.