EXS 24 Logic Sampler Users Group

Hi guys,
I'm a complete newbie to the EXS24 (got it around a month ago), my 
free factory disk has just arrived and I've tried installing in order 
to load all the relevant samples and I keep getting an error message 
that it cannot detect a copy of Logic on the machine. I have Logic 
5.5.0 on a G4 (dual proc) mac which works without any issues. Has 
anyone had this before or can anyone assist?

rgds

Tee