Deferred! Still having issues populating eform with dynamic data

<?php
function eForm2db( &$fields )
	{
		/*---------------------------------------------------------------		
		eForm2db 
		Version: 0.1 [Beta 1]
		Author: pixelchutes
		---------------------------------------------------------------
		Requirements:
			eForm 1.4+
		---------------------------------------------------------------
		Use:
			- Takes validated eForm submittal data for use with the MODx DBAPI extender class.								
			- Easily process database records referencing your form submission data:				  
			  + INSERT new records to a table of your choice				  
			  + UPDATE existing records if you'd prefer				  
			  + DELETE records based on form submittal criteria				  
			  + Form a query and return its record set as XML using $modx->db->getXML				  
			  + Query a table's MetaData using $modx->db->getTableMetaData, followed by an update query
			    on only the form fields that are named after table columns!				    
			  + and much more! 
		---------------------------------------------------------------*/

		// Bring needed resources into scope
		global $modx, $table_prefix;

		// Init our array
		$dbTable = array(); // key = DB Column; Value = Insert/Update value

		// Insert field/value pairs to insert/update in our table
		$dbTable[name] = $fields[first_name].' '.$fields[last_name]; // Merge two form fields together
		$dbTable[datetime] = date( 'YmdHis', strtotime( $fields[postdate] ) ); // Massage the postdate timestamp to be MySQL insert friendly


		// INSERT - $dbQuery = $modx->db->insert( $dbTable, $table_prefix . 'insertTableName' );
		// UPDATE - $dbQuery = $modx->db->update( $dbTable, $table_prefix . 'updateTableName' );
		// DELETE - $dbQuery = $modx->db->delete( $table_prefix . 'deleteFromTableName', 'some_field = 1 AND name=\''.$dbTable[name].'\'', '' );
		// etc...
				
		// Run the db insert query
		$dbQuery = $modx->db->insert( $dbTable, $table_prefix . 'insertTableName' );		

		return true;
	}
	// Return empty string
	return '';
?>