trying to get docbook xsl working with OpenOffice

Hi,
	I am only a beginner with DocBook.
I have a docbook article saved from an OpenOffice sxw file with the OpenOffice
DocBook exporter. I am trying to use the docbook xsl tools to generate HTML from
this file. I am using :
docbook-xsl-1.61.3 with Xalan version 1.4.0 and Xerces version 2.0.0

However I am getting the following errors :
XSLT warning: Fatal Error at (file file:///home/yamed/downloads/docbook-xsl-1.61.3/html/../common/../common/l10n.dtd, line 15, column 24): Expected default attribute declaration, assuming #IMPLIED  (, line -1, column -1)
XSLT warning: Cannot load requested document: ../common/l10n.xml (Base URI: file:///home/yamed/downloads/docbook-xsl-1.61.3/html/../common/l10n.xsl), source tree node: #document (file:///home/yamed/downloads/docbook-xsl-1.61.3/html/../common/l10n.xsl, line 18, column 69)
XSLT message: No localization exists for "en_ie" or "en". Using default "en"., source tree node: article (file:///home/yamed/downloads/docbook-xsl-1.61.3/html/../common/l10n.xsl, line 95, column 20)
XSLT message: No "en" localization exists., source tree node: article (file:///home/yamed/downloads/docbook-xsl-1.61.3/html/../common/l10n.xsl, line 327, column 18)
XSLT message: No context named "title" exists in the "en" localization., source tree node: article (file:///home/yamed/downloads/docbook-xsl-1.61.3/html/../common/l10n.xsl, line 342, column 18)
XSLT message: No "en" localization exists., source tree node: article (file:///home/yamed/downloads/docbook-xsl-1.61.3/html/../common/l10n.xsl, line 327, column 18)
XSLT message: No context named "title" exists in the "en" localization., source tree node: article (file:///home/yamed/downloads/docbook-xsl-1.61.3/html/../common/l10n.xsl, line 342, column 18)
XSLT message: No template for "/article" (or any of its leaves) exists in the context named "title" in the "en" localization., source tree node: article (file:///home/yamed/downloads/docbook-xsl-1.61.3/html/../common/l10n.xsl, line 386, column 24)
XSLT message: No localization exists for "en_ie" or "en". Using default "en"., source tree node: article (file:///home/yamed/downloads/docbook-xsl-1.61.3/html/../common/l10n.xsl, line 95, column 20)
XSLT message: No "en" localization of "TableofContents" exists., source tree node: article (file:///home/yamed/downloads/docbook-xsl-1.61.3/html/../common/l10n.xsl, line 176, column 20)
XSLT message: No localization exists for "en_ie" or "en". Using default "en"., source tree node: sect1 (file:///home/yamed/downloads/docbook-xsl-1.61.3/html/../common/l10n.xsl, line 95, column 20)
XSLT message: No "en" localization exists., source tree node: sect1 (file:///home/yamed/downloads/docbook-xsl-1.61.3/html/../common/l10n.xsl,line 327, column 18)
XSLT message: No context named "title-unnumbered" exists in the "en" localization., source tree node: sect1 (file:///home/yamed/downloads/docbook-xsl-1.61.3/html/../common/l10n.xsl, line 342, column 18)
XSLT message: No "en" localization exists., source tree node: sect1 (file:///home/yamed/downloads/docbook-xsl-1.61.3/html/../common/l10n.xsl,line 327, column 18)
XSLT message: No context named "title-unnumbered" exists in the "en" localization., source tree node: sect1 (file:///home/yamed/downloads/docbook-xsl-1.61.3/html/../common/l10n.xsl, line 342, column 18)
XSLT message: No "en" localization exists., source tree node: sect1 (file:///home/yamed/downloads/docbook-xsl-1.61.3/html/../common/l10n.xsl,line 327, column 18)
XSLT message: No context named "title-unnumbered" exists in the "en" localization., source tree node: sect1 (file:///home/yamed/downloads/docbook-xsl-1.61.3/html/../common/l10n.xsl, line 342, column 18)
XSLT message: No template for "/article/sect1" (or any of its leaves) existsin the context named "title-unnumbered" in the "en" localization., source tree node: sect1 (file:///home/yamed/downloads/docbook-xsl-1.61.3/html/../common/l10n.xsl, line 386, column 24)

etc.

Am I doing something wrong ?

Thanks for any help,
CPH