The homepage of GnuGetText for Delphi (dxgettext) seems to be down (it redirects to www.delphidk.dk which my DNS cannot resolve). Here is the last archived version on the Internet Archive.
Starting with GExperts 1.3.20 calling the standalone Experts Manager displayed the error message "GExpertsInst is not a valid reference". After that the tool actually works fine. This bug has now been fixed in the current source code. I don't think this minor inconvenience justifies a new release.