Hi,
Please go to file sns_kalolia\app\design\frontend\sns_kalolia\default\layout\catalog.xml
You find :

<catalog_category_default translate="label">
<reference name="root">
<action method="setTemplate">
<template>page/2columns-left.phtml</template>
</action>
</reference>
.............
</catalog_category_default>

change by

<template>page/2columns-right.phtml</template>

Thanks