http://magento.stackexchange.com/questions/44858/changing-info-tab-title

It is pretty easy to change the title of description tab if you are using theme based on rwd. Follow below steps to do so:



1) Goto app/design/frontend/YOURTHEMEPACKAGE/default/layout/catalog.xml



2) search for below code somewhere near line 200



<block type="catalog/product_view_description" name="product.description" as="description" template="catalog/product/view/description.phtml">
                    <action method="addToParentGroup"><group>detailed_info</group></action>
                    <action method="setTitle" translate="value"><value>Description</value></action>
 </block>

3) Replace the name "Description" in between <value> tab of <action method="setTitle"> to your desired name.