I have an array which I've serialized. When I run the query I echo it out unserialized and then encode part of it for use in a URL... however when I was cleaning up the URLs with mod_rewrite it stopped working. It doesn't produce any errors... it just doesn't work.

I'm not the best with this sort of thing so I'm guessing it has to do with this. Any suggestions?
Code:
RewriteRule ^search/([A-Za-z]+)/([^a-zA-Z0-9\+\_s])/?$ index.php?page=search&type=$1&category=$2 [L]
Here is how the URL looks after being encoded: "/search/video/Nonprofits+%26amp%3B+Activism/"