I found our access_log getting big, and decided to replace it with a smaller
version of the file by

mv access_log acess_log_bak
cat /var/logs/httpd/access_log_bak | grep Feb/2003 > access_log

I had also created a link to it in /var/www/html. I did some playing around with the link, and stuffed it up, but got it right.

The problem is that nothing is being added to the log now. I am not sure what I have done wrong.

you cant create a new log file like that....
just back up the old log file that is getting
big and then restart your webserver and
it will create a new log file that it can use..

you cant actually edit the log file because
once you edit it...it changes something...
dont know exactly what...but nothing will
get added to it...

i might be wrong...but i have tried what you
are doing and it doesnt work.