Hi Hernan,
If you want some examples of working with dynamic browsers,
just download two packages from
ss3.gemstone.com/ss/SpaTutorial
into a Moose 4.8
TutorialBrowser and XPDays2012
then open a workspace and do
XPTutorial open
Some pages will be missing because Monticello doesn't support
long methods, and the exercises need the other packages
and some data.
Stephan