Moving index.php

Hello.
i’ve just installed WordPress…no problems there.
I installed into a directory called log (log). One of the options is “If you want your blog homepage to be different than the directory you installed WordPress in, enter that address here”, so i changed that from http://www.dub.ca/log to http://www.dub.ca, uploaded index.php to that dir. now i get an error message say:
“Warning: main(): Unable to access ./wp-blog-header.php in /home/virtual/site329/fst/var/www/html/index.php on line 3
Warning: main(./wp-blog-header.php): failed to open stream: No such file or directory in /home/virtual/site329/fst/var/www/html/index.php on line 3
Fatal error: main(): Failed opening required ‘./wp-blog-header.php’ (include_path=’.:/php/includes:/usr/share/php:/usr/share/pear’) in /home/virtual/site329/fst/var/www/html/index.php on line 3″
Do I need to change something else?
thanks
mdp.