I have a custom module in my magento store. It is currently using the default 2 column layout with magento's left nav as the lefthand sidebar.
How can i go about having the customer account navigation in my left sidebar instead? My current xml file for my module is:
earnings.xml
<?xml version="1.0"?>
<layout version="0.1.0">
<earnings_index_index>
<reference name="content">
<block type="earnings/earnings" name="earnings" />
</reference>
</earnings_index_index>
</layout>