Thank you very much to all. It was, like you've said a wrong path to add.cgi, modify.cgi etc.... in links.cfg.
In add, there was a wrong CHMOD on one directory. Sometimes, with ftp upload, the CHMOD disappears. Thanks again, links 2 is operationnal.
Now... the templates. (I have to find how to keep backgrounds pictures or collor in different tables on the same page)
This forum is marvelous.