Since version 3.0 WordPress includes new menu system. It allows to setup menu items in administration area easily and associate menus with specific places in theme templates. It outputs decent list-based markup (pre-filled with classes) that you can style with CSS (and customize if needed). See Navigation Menus for where to start.
You can try using the WP easy uploader plugin to add images/files via WP interface
Not sure about “lost” header. Was it part of markup? CSS background? Custom background? Losing menu assignments is normal behavior. Child theme is not same theme as parent It is completely separate theme, that uses parent as fall-back Child theme is loaded and processed before parent theme (yeah, seems a little backwards). Don’t expect it … Read more
Since version 3.0 capabilities to run multiple site on single installation had been included in WordPress core. See Create A Network in documentation. I have nothing to suggest on theme and I advise to split that part in separate question.
See this post: http://wpmututorials.com/known-issues/did-your-users-theme-options-and-widgets-page-disappear/ Basically, pick a different cap until it works. Also see: http://codex.wordpress.org/Roles_and_Capabilities
Your best bet is to make a child theme and simply add in the twentyten header.php with a link to your image. How to make child theme, http://codex.wordpress.org/Child_Themes It would be something like this ( under the branding div.) <div id=”branding” role=”banner”> <div id=”logo”><img src=”https://wordpress.stackexchange.com/questions/5198/<?php bloginfo(“template_url’ ); ?>/images/YourImage.png” alt=””/></div></div><!– #branding –>
add_action(‘publish_post’, ‘call_my_php_file’); function call_my_php_file($post_id){ require_once(“path/to/file.php”); }
Codex has some step by step instructions on manual theme upload. In case of issues it is also worth checking if theme structure and meta information are adequate and in line with technical requirements. There is also Theme Check plugin for automated testing, but it’s unlikely to help if WP can’t properly detect theme.
Does it not work because theme is old or simply coded in incompatible way? There is this article in Codex that might be relevant – Migrating Plugins and Themes to 2.7/Enhanced Comment Display. Otherwise I’d take a look at some modern theme (like Twenty Ten) and see how is it properly coded for current WordPress … Read more
My suggestions would be: Overwrite with clean copy of WordPress. Try to output path constants and verify that theme is loaded from proper directory. Try disabling all plugins. Install configuration check plugin, like ServerBuddy, and see f anything lights up as horribly broken.