no.
the plugins should be in the plugins directory of your tour.
the path in xml should point there...
you also maybe have to change the code for additional plugins or other behaviour.
be sure you use plugins of the right version!
so:
now on krpano 1.16.3
the plugins you can find in the krpano 1.16.3 (viewer) download.
but when u use vtour droplet.. it should work by default, for the gyro in this case..
gyro works not on ipad 1!!
learn to use the forum, do searches and also look at the top menu at
http://www.krpano.com/plugins/
http://www.krpano.com/docu/xml/#top
http://www.krpano.com/docu/actions/#top
also try to read the xml code and learn.
Tuur