When you rename a page, it will not let you over-write an existing page (the error message complains about another content object having the same name). If you have a page that should replace an existing page (e.g., "new_index" should replace "index"), perhaps because you have re-built it using a different template, then you must first rename the existing page (e.g., to "old_index") -- or delete it (but that is rarely the better choice), and then rename the new page in to replace it. There will unavoidably be a short period of time when anyone attempting to access the page will be told that it doesn't exist.
When you move or rename a CommonSpot page, any CommonSpot pages with links to that page will be updated to point to the page in its new location or new name, provided that those links were constructed with the Page Gallery or Page Finder dialogs in V5 and prior versions of CommonSpot, or the "Choose" dialog in V6 or later. Therefore, if you are using the rename command to replace an existing page, we suggest that you first go to the old page, before re-naming or deleting it, use the "Referring Pages" process to point all internal-to-CommonSpot links to the new page, and then do the rename process.
If you want to change the subsite or sub-subsite where the page is located, use the move option.
Login and navigate to your page whose name you want to change.
Click on the pencil tool icon at the upper-right and select Work on this Page, or Work on this Page (All Changes).
Click the "Actions" button (near the left end of the top row of the content-spanning toolbar), and select "Rename Page...".
Specify the Name (which will have ".cfm" appended to become the last part of the URL -- this is the part that CommonSpot won't let collide with an existing page), the Title (which is the internal-to-CommonSpot identifier), and the Title Bar Caption (which becomes the TITLE in the HEAD section of the generated HTML).
Click on the "Save" button.