In earlier Magento versions it was quite difficult to set or read store specific values on entities. In most cases you have to set the store on the whole application instance like that:

<?php
Mage::app(STOREID)->setStore(STOREID);
...
$oProduct->setStore(STOREID);
...
$oCollection->setStore(STOREID);

Sometimes it was even necessary to add the store  to entities or collections it-selves too.

Now (at least EE 1.14) you can do it this way:

<?php
$oEmulator = Mage::getSingleton('core/app_emulation');

$iStoreID = 88; // The store to simulate

$oRollbackState = $oEmulator->startEnvironmentEmulation($iStoreID);

// do something store specific f.e: read or set product / category attributes

$oEmulator->stopEnvironmentEmulation($oRollbackState);

This works for Front- and Backend!