URL rewrite

I am trying to redirect all traffic that comes to old links to new links:

<rewrite>
  <rules>
                <rule name="Rewrite rule1 for 1" stopProcessing="true">
                    <match url=".*." />
                    <conditions>
                        <add input="{QUERY_STRING}" pattern="pid=([0-9]+)" />
                    </conditions>
                    <action type="Redirect" url="/p/{C:1}" appendQueryString="true" redirectType="Permanent" />
                </rule>
  </rules>
            <rewriteMaps>
                <rewriteMap name="1" />
            </rewriteMaps>
</rewrite>

I added to the rewrite rules, but when I browse my site, it does not work.. Any help?