Jumped the gun with the last post - I went back and changed the permissions to 766 on
htaccess and that worked, all the new pages show up properly.
Also: the codex instructions and other similar posts are confusing. Example from the codex:
You must chmod the .htaccess file to 666 to edit it with the WordPress template editor, but this is not recommended, since if you do that, any user of your blog, who can edit templates will be able to edit it. You can change the permissions to 660 to make it server-writable, which again will have the same limitation.
For a newb to WP, PHP, and so on, this seems to send a mixed message: "Fix your problem by changing
permissions to 666, but you put your site's security (or at least its templates) at risk, so don't do it." Is a user somone who has posting priveleges, a visitor to the site, a commenter? Please, a little clarification. This kind of confusing language is pretty rare in the WP galaxy; I'm grateful for all the support posts, codex entries, and blogs that have helped me this far.