I created a custom module and i placed the list of subscribers under catalog and configuration under system tab and i added acl for this but the tab subscribers under catalog is not accessible but the configuration can access . my acl code is
<adminhtml>
<menu>
<catalog>
<children>
<outofstocksubscription translate="title" module="outofstocksubscription">
<title> Subscribers</title>
<sort_order>190</sort_order>
<action>outofstocksubscription/adminhtml_subscriber</action>
</outofstocksubscription>
</children>
</catalog>
</menu>
<acl>
<resources>
<all>
<title>Allow Everything</title>
</all>
<admin translate="title" module="adminhtml">
<children>
<catalog>
<children>
<outofstocksubscription translate="title" module="outofstocksubscription">
<title> Subscribers</title>
</outofstocksubscription>
</children>
</catalog>
<system>
<children>
<config>
<children>
<outofstocksubscription translate="title">
<title>Out of Stock Subscription</title>
<sort_order>200</sort_order>
</outofstocksubscription>
</children>
</config>
</children>
</system>
</children>
</admin>
</resources>
</acl>
</adminhtml>
please help me.