my config.xml
-----------
<?xml version="1.0" encoding="utf-8"?>
<config>
    <modules>
        <Nine_Magazine>
            <version>0.1.0</version>
        </Nine_Magazine>
    </modules>
    <global>
        <models>
            <nine_magazine>
                <class>Nine_Magazine_Model</class>
            </nine_magazine>
        </models>
        <blocks>
            <nine_magazine>
                <class>Nine_Magazine_Block</class>
            </nine_magazine>
        </blocks>
        <helpers>
            <nine_magazine>
                <class>Nine_Magazine_Helper</class>
            </nine_magazine>
        </helpers>
      <!--  <resources>
            <nine_magazine_setup>
                <setup>
                    <module>Nine_Magazine</module>
                    <class>Nine_Magazine_Model_Resource_Setup</class>
                </setup>
                <connection>
                    <use>core_setup</use>
                </connection>
            </nine_magazine_setup>
            <nine_magazine_write>
                <connection>
                    <use>core_write</use>
                </connection>
            </nine_magazine_write>
            <nine_magazine_read>
                <connection>
                    <use>core_read</use>
                </connection>
            </nine_magazine_read>

        </resources>-->
        <models>
            <nine_magazine>
                <class>Nine_Magazine_Model</class>
                <resourceModel>nine_magazine_mysql4</resourceModel>
            </nine_magazine>
            <nine_magazine_mysql4>
                <class>Nine_Magazine_Model_Mysql4</class>
                <entities>
                    <magazine>
                        <table>nine_magazine_entity</table>
                    </magazine>
                </entities>
            </nine_magazine_mysql4>

        </models>
    </global>
    <frontend>
        <routers>
            <nine_magazine>
                <use>standard</use>
                <args>
                    <module>Nine_Magazine</module>
                    <frontName>magazine</frontName>
                </args>
            </nine_magazine>
        </routers>
        <layout>
            <updates>
                <nine_magazine module="nine_magazine">
                    <file>nine_magazine.xml</file>
                </nine_magazine>
            </updates>
        </layout>
    </frontend>
</config>

my controller
-----------------
<?php

class Nine_Magazine_MagazineController extends Mage_Core_Controller_Front_Action {



     public function showAction() {
        //echo 'test';exit;
        $this->loadLayout();
        $this->renderLayout();

    }
        }

------
<?php

class Nine_Magazine_Block_Show extends Mage_Core_Block_Template {


}

-------------
<?xml version="1.0"?>
<layout version="0.1.0">
    <nine_magazine_magazine_show translate="label">
        <label>Magazine</label>
        <!-- Mage_Customer -->
        <remove name="right"/>
        <remove name="left"/>

        <reference name="root">
            <action method="setTemplate">
                <template>page/1column.phtml</template>
            </action>
        </reference>
        <reference name="content">
            <block type="magazine/show" name="magazine_show" template="magazine/magazine.phtml"></block>
        </reference>
    </nine_magazine_magazine_show>
</layout>

<block type="nine_magazine/show"

<blocks>
    <nine_magazine>
        <class>Nine_Magazine_Block</class>
    </nine_magazine>
</blocks>