upgrade problem

[marvelousg]

I have strange problems with upgrading vivvo.
I try to make an upgrade from vivvo 4.0.4 to vivvo 4.1.
I have an error message:
[24-Mar-2009 20:16:06] PHP Fatal error: require_once() [<a href='function.require'>function.require</a>]: Failed opening required '/home1/iphone/public_html/iphone-progs.ru/lib/vivvo/framework/full_page_cache.functions.php' (include_path='.:/usr/lib/php') in /home1/iphone/public_html/****.com/index.php on line 38
I cheked thoose folder - lib/vivvo/framework/
and file full_page_cache.functions.php was there. I cheked permissions. Made chmod 777. And nothing changed.
What can I do?

[marvelousg]

problem was solved.

[littlefaroh]

how did u solve it??

[marvelousg]

I have renamed vbulletin config.php file.
And turned on vbulletin bridge.
So I made some custom coding on vbulletin bridge.