You'd be better finding a normal flute arrangement of the tunes. That book is specifically for the Highland pipes, using standard military-style bagpipe ornamentation (which does not work on the flute), the key changed to two sharps (since G major doesn't work on the pipes), and folding bits of the tunes into the nine-note range (which you don't need to do on a flute).

That book probably had its greatest influence on the Orange musical culture of northern Ireland, and may have been compiled with that in mind.

You will not get a very positive response playing those versions of the tunes in an Irish tune session.