Do thefollowing:
chkconfig --list|grep http
You get something like this:
httpd 0:off 1:off 2:off 3:off 4:off 5:off 6:off
Now do:
chkconfig httpd on
This will set it up to start each time you boot.
Verify by:
chkconfig --list|grep http
you get:
httpd 0:off 1:off 2:on 3:on 4:on 5:on 6:off