Yes thats cool text editor.. its working only with new fresh xoops installation and fresh database not existing database. i guest need module system hack to integrate it with existing xoops core and database. but you still can use it with change your database manually. (x---_config)
i have no problem using xnew on xoops 2.5.3. maybe the problem not in code but in database or xoops core .try use frameworks 1.22. main problems in xnews is no css like news. look bad when using firefox, opera. only good when using chrome