Following Skippy's suggestions to timothy15 on "Permalinks mess":
If you can now access your permalinks page, delete any permalink structure defined there, and click Save. That should blank your .htaccess. (my result --> CRASH for the 100th times)
Or, create a blank .htaccess and remove write permission to it. In this way, WordPress will be unable to automatically add rewrite rules. (my result --> a 404 Not Found error)
And even if I delete the .htaccess file it automatically generates itself according to the wrong permanent structure, every attempts to update cause CRASHES. so i delete .htaccess again and the loop keeps going endlessly.
how can i eliminate the WRONG permanent structure and stop wp from generating the WRONG .htaccess? pls kindly help.