MP2 CE "includes a 10GB library with 733 instruments spread out across all the instrument categories". It does not seem that you have all of those.
As this is primarily a user to user forum, someone-else may chime in. Meanwhile, the best thing to do is raise a Support Ticket, here:
http://www.ikmultimedia.com/contact-support/mi/for some one to one help. And, to help others who run into a similar problem, please let us know how it gets resolved.