mod_rewrite is not enabled

I'm trying to get Omeka uninstalled under Leopard. When trying to do the install step from the browser, I get
Installation Error

Before installation can continue, the following errors must be resolved:

mod_rewrite is not enabled

Apache's mod_rewrite extension must be enabled for Omeka to work properly. Please enable mod_rewrite and try again.

I verified that I have the line uncommented.

I noticed in the apache2 console this error:
File does not exist: /Library/WebServer/Documents/omeka/install/checkModRewrite.html

I checked and it is true that file doesn't exist. Should it?

I've seen comments about .htaccess files. I have one in /Library/WebServer/Documents/omeka

It looks like this
<IfModule mod_php5.c>
php_value display_errors 0
php_flag register_globals off

RewriteEngine on
RewriteCond %{REQUEST_FILENAME} !-f
RewriteCond %{REQUEST_FILENAME} !-d [OR]
# This ensures that Apache will not mistake the URL for a re
quest for the physical directory that stores files
RewriteCond %{REQUEST_URI} .+\/archive\/
RewriteRule !\.(js|ico|gif|jpg|png|css)$ index.php

<FilesMatch "\.(php|ini)$">
Order Allow,Deny
Deny from all

<Files index.php>
Allow from all

# Uncomment the lines below in order to enable caching of some files via Apache
(after a finished site has gone live)
<IfModule mod_expires.c>
# <FilesMatch "\.(js|css|gif|png)$">
# ExpiresActive on
# ExpiresDefault "access plus 10 day"
# </FilesMatch>

Should this file be other places too?

I meant installed not uninstalled. Whoops.

mod_rewrite is a bit of a pain to get working on Leopard. Did you restart Apache after uncommenting the line for mod_rewrite? You have to do that I believe before the changes can take effect. You also need to make sure to change AllowOverride to All.

I've got a small explanation on my personal wiki -

Let me know if this helps!

Thanks for replying.
I did restart apache and have AllowOverride to All.

I'll take a look at your wiki to see if I missed something.

Ah, there was more than one place that had a line with phrase AllowOverride. I changed the wrong one. Fixed that using your wiki info and I'm going forward again.