line 46 – wp-content/plugins/simple-press/sp-startup/sp-load-site.php

Should be commented out for now?

add_action('wp_head','sp_load_blog_support');

causes php fatal error as sp_load_blog_support calls undefined sp_blog_links_control().

Got forum page to load for first time by commenting out. Grepping source showed other occurences of sp_load_blog_support commented out. Perhaps this one was missed?

You've caught me mid-way between updates I think.
Turning on the Blog Linking plugin should resolve this one.
I had hoped to get that final code in last night but missed it - 2 or 3 places as you say.
Again - all being well will be resolved today.
Gosh - I am unused to having people grabbing the code from svn. Just going to have to be more careful now 🙂