In magento to edit or remove home page right side community poll and back to school image is very simple,to edit or remove magento front page right side community poll and back to school image in magento 18.104.22.168 to follow these steps.
To change the Back to school image, to upload new image in
To Modify the code
open catalog.xml file line no:58(Dreamweaver)
<action method="setImgSrc"><src>images/media/col_right_callout.jpg</src></action> <action method="setImgAlt" translate="alt" module="catalog"><alt>Keep your eyes open for our special Back to School items and save A LOT!</alt></action>
Here to modify or delete image name and alt description
To disable community poll in magento right side
Go to admin->system->configuration
under configuration click Advanced->Expand Disable Modules Output Tab
Here to Disable Mage_Poll as seen above and Click Save Config Button.