272448 Site moved now receives errors

We moved our site to a new server and now it is receiving php errors and we do not know why. 4 things. I have an ajax comment posting system no my site, but it is not working and is showing this error upon commenting: Warning: require_once(HTML/[login to view URL]) [function.require-once]: failed to open stream: No such file or directory in /www/sites/[login to view URL] on line 23 Fatal error: require_once() [[login to view URL]]: Failed opening required 'HTML/[login to view URL]' (include_path='.:/usr/share/php:/usr/share/pear') in /www/sites/[login to view URL] on line 23 Also, when quotes are displayed, it turns them into weird character: �Lowbrow,� Also, when i go to a blog page it gets this error: Warning: require_once(HTML/[login to view URL]) [function.require-once]: failed to open stream: No such file or directory in /www/sites/[login to view URL] on line 123 Fatal error: require_once() [[login to view URL]]: Failed opening required 'HTML/[login to view URL]' (include_path='.:/usr/share/php:/usr/share/pear') in /www/sites/[login to view URL] on line 123 Also, when I upload music and try to play it, it doesnt work. Music uploaded before the move worked though! thanks. need work to tbegin now.