Magento Installer Script未运行

I am learning Magento. In this regard I am following this (http://www.opensourceforwebtechnologies.com/create-custom-model-in-magento/) tutorial.

My config.xml file is like below

<?xml version="1.0"?>
<config>
    <modules>
        <Easylife_Helloworld>
            <version>0.1.0</version>
        </Easylife_Helloworld>
    </modules>
    <frontend>
        <routers>
            <helloworld>
                <use>standard</use>
                <args>
                    <module>Easylife_Helloworld</module>
                    <frontName>helloworld</frontName>
                </args>
            </helloworld>
        </routers>
        <layout>
            <updates>
                <helloworld>
                    <file>helloworld.xml</file>
                </helloworld>
            </updates>
        </layout>
    </frontend>
    <global>
        <blocks>
            <helloworld>
                <class>Easylife_Helloworld_Block</class>
            </helloworld>
        </blocks>
        <models>
            <helloworld>
                <class>Easylife_Helloworld_Model</class>
                <resourceModel>helloworld_resource</resourceModel>
            </helloworld>
            <helloworld_resource>
                <class>Easylife_Helloworld_Model_Resource</class>
                <entities>
                    <helloworld>
                        <table>helloworld</table>
                    </helloworld>
                </entities>
            </helloworld_resource>
        </models>
        <resources>
            <helloworld_setup>
                <setup>
                    <class>Mage_Core_Model_Resource_Setup</class>
                </setup>
                <connection>
                    <use>core_setup</use>
                </connection>
            </helloworld_setup>
            <helloworld_read>
                <connection>
                    <use>core_read</use>
                </connection>
            </helloworld_read>
            <helloworld_write>
                <connection>
                    <use>core_write</use>
                </connection>
            </helloworld_write>
        </resources>
    </global>
</config>

I read this (Create a new table from magento module) question also.

There is not entry in core_resource table in the database.

Location of my script as like below image.

Here is the screenshot of my core_resource table.

Could any one help me to run my installer script ?? Thanks

If it is not showing in core resource table then it means you have not created module's xml file.

1. Go to this location app/etc/modules/

2. Create a xml file with name {{name_spac}}_{{module_name}}.xml in your example Easylife_Helloworld.xml. Open this file and write this:

   <?xml version="1.0"?>
   <config>
       <modules>
            <Fontis_FeedsGenerator>
                <active>true</active>
                <codePool>local</codePool> /*This is your module location in app/code/ */
            </Fontis_FeedsGenerator>
      </modules>
   </config>
   

3. And do remember to refresh cache System >> Cache Management

Also Go to System > Configuration > Advanced > Advanced and see if your module appears in the "Disable Module Output" list or not.