Template Registry not Registering

My name is Walt and we are using Clarion ver 6.3.9057.  We are
developing using IBM laptops and PC's running under the Windows XP
2002 with SP 2 operating system.  Version 6 has been installed on a
laptop used for development and I'm trying to get the Template
Registry to install new templates.  I understand that the file that
should be opened in this situation is the CW.TPL file in the Templates
subdirectory.  I've attempted this several times and the new features
aren't being written to the file.  Do you have any info on this type
of problem?