My b2evolution Version: 2.0.20
I did the auto upgrade from my cpanel logon to the latest version of B2evolution blog, now I can't post......!
xxxxxxx is my domain user so blanked out....

Notice: Undefined variable: admin_dirout in /home/xxxxxxx/public_html/Blog/admin/_header.php on line 17

Notice: Undefined variable: core_subdir in /home/xxxxxxxx/public_html/Blog/admin/_header.php on line 17

Warning: main(/home/xxxxxxx/public_html/Blog/admin///_main.php) [function.main]: failed to open stream: No such file or directory in /home/xxxxxxx/public_html/Blog/admin/_header.php on line 17

Fatal error: main() [function.require]: Failed opening required '/home/xxxxx/public_html/Blog/admin///_main.php' (include_path='.:/usr/lib/php:/usr/local/lib/php') in /home/xxxxxx/public_html/Blog/admin/_header.php on line 17

Any experts out there can tell me how to fix it.?

Plus:
How do I re-order it back to display entries earliest first (as it was before upgrade).