Hack the dtd URIs for now. The directories will need to be restructured a bit to fix this correctly.

suite/common/bookmarks/bm-props.xul

@@ -20,7 +20,7 @@
 
 <?xml-stylesheet href="chrome://global/skin/xul.css" type="text/css"?>
 
-<!DOCTYPE window SYSTEM "chrome://l10n/locale/bm-props.dtd" >
+<!DOCTYPE window SYSTEM "resource:/res/samples/bm-props.dtd" >
 <xul:window
   xmlns:xul="http://www.mozilla.org/keymaster/gatekeeper/there.is.only.xul"
   xmlns="http://www.w3.org/TR/REC-html40"

xpfe/components/bookmarks/resources/bm-props.xul

@@ -20,7 +20,7 @@
 
 <?xml-stylesheet href="chrome://global/skin/xul.css" type="text/css"?>
 
-<!DOCTYPE window SYSTEM "chrome://l10n/locale/bm-props.dtd" >
+<!DOCTYPE window SYSTEM "resource:/res/samples/bm-props.dtd" >
 <xul:window
   xmlns:xul="http://www.mozilla.org/keymaster/gatekeeper/there.is.only.xul"
   xmlns="http://www.w3.org/TR/REC-html40"

xpfe/components/bookmarks/resources/bookmarks.xul

@@ -19,10 +19,11 @@
 -->
 
 <?xml-stylesheet href="chrome://global/skin/xul.css" type="text/css"?>
-<?xml-stylesheet href="manage-bookmarks.css" type="text/css"?>
+<?xml-stylesheet href="chrome://bookmarks/skin/manage-bookmarks.css"
-<?xml-stylesheet href="bookmarks.css" type="text/css"?>
+   type="text/css"?>
+<?xml-stylesheet href="chrome://bookmarks/skin/" type="text/css"?>
 
-<!DOCTYPE window SYSTEM "chrome://l10n/locale/bookmarks.dtd" >
+<!DOCTYPE window SYSTEM "resource:/res/samples/bookmarks.dtd">
 <xul:window title="&bookmarksWindowTitle.label;"
   xmlns:html="http://www.w3.org/TR/REC-html40"
   xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#"