I think angelox would be able to answer that better since it's his database you're using, I have no experience with his. You don't need to change your database at all except source in the files from.
http://code.google.com/p/projecteqem.../utils/sql/svn If you think your database is really that old then you might need to source them all in, the only way to really tell is if you try to start your server and you get a bunch of errors. Might be a little tedious to add in all those changes but it's the only way I know of for your situation.
And yeah for compiling you just download the source from that link, make your changes and compile.