I upgraded the cpg 1.1 to 1.2 RC2 for about 3 days. The navigation bar
(https://coppermine-gallery.com/forum/proxy.php?request=http%3A%2F%2Fchest.femh.org.tw%2Fforum%2Fuploads%2Fnavbar.gif&hash=a77ee3859b17ecd8b00ee91feadf4a127d5016cb)
is not shown while browsing among categories. It is shown only while viewing a intermediate picture. There is no easy way to get back to the parent or root category.
(https://coppermine-gallery.com/forum/proxy.php?request=http%3A%2F%2Fchest.femh.org.tw%2Fforum%2Fuploads%2Fnavbar2.gif&hash=c170a9d89a25002c9b13f0f4056f213ff023fa8a)
in cpg1.2.0 there's an option to enable/disable this so called "breadcrumb navigation" in the config. Just add it to "The content of the main page" (refer to the manual for details). It might cause problems if you try to put it somewhere else than at the very start of the input field, so just leave it "breadcrumb/catlist/alblist/random,2/lastup,2" for a start.
Hope this helps
GauGau