Any advice? First of all I know of no harmonica instructors in my area, and Secondly the book I bought was designed 10 hole diatonic harmonicas, where as the harmonica appears to be a 8 hole tremolo model.

http://www.harmonicalessons.com/ Would this be of any help?

http://www.harmonicalessons.com/chrom.html And this appears to be the relevant section of the site for your instrument.