Qualified the .bt_navbar:hover and .bt_navbar:visited styles with A, so they don't affect other things, like the vertical bars. Also changed the order of :visited and :hover, so that :hover wins when you're over a visited link.
lookups should be drawn from all packages, not only the package of the catalog file. Got burned on the fact that xargs invokes egrep multiple times making my or construction fail.
removing large commented out pieces of code from home.tcl, I18N: moving the default texts for screen name and portrait title into the message catalog. As a result, nvl / coalesce was no longer needed and I could remove the home-oracle.xql file