So after following everything in the docs for making a duplicate installation and all, I got most things working. Except when I try to log in, I get an error saying "The requested action (login) was not defined in the system", which I assume is related to the following issue: I have 250 lines of errors per login action. Error log (IP removed, user=username on server, domain=my sites name) exerpt:

[Thu Mar 03 22:45:34 2011] [error] [client 255.255.255.255] PHP WARNING: 2011-03-03 22:45:34 (PST): "include() [<a href='function.include'>function.include</a>]: Failed opening '/public_html/domain/version.php' for inclusion (include_path='.:/usr/lib/php:/usr/local/lib/php')" in file /home/user/public_html/domain/engine/lib/version.php (line 77), referer: http://domain.com/
[Thu Mar 03 22:45:34 2011] [error] [client 255.255.255.255] PHP WARNING: 2011-03-03 22:45:34 (PST): "include(/public_html/domain/version.php) [<a href='function.include'>function.include</a>]: failed to open stream: No such file or directory" in file /home/user/public_html/domain/engine/lib/version.php (line 77), referer: http://domain.com/
[Thu Mar 03 22:45:34 2011] [error] [client 255.255.255.255] PHP WARNING: 2011-03-03 22:45:34 (PST): "include(/public_html/domain/version.php) [<a href='function.include'>function.include</a>]: failed to open stream: No such file or directory" in file /home/user/public_html/domain/engine/lib/version.php (line 77), referer: http://domain.com/
[Thu Mar 03 22:45:34 2011] [error] [client 255.255.255.255] PHP WARNING: 2011-03-03 22:45:34 (PST): "include() [<a href='function.include'>function.include</a>]: Failed opening '/public_html/domain/version.php' for inclusion (include_path='.:/usr/lib/php:/usr/local/lib/php')" in file /home/user/public_html/domain/engine/lib/version.php (line 77), referer: http://domain.com/

237 lines of this from one login action. Help?