In file $themedir/Profile.template.php
Find:
<tr>
<td><b>', $txt[86], ': </b></td>
<td>', $context['member']['posts'], ' (', $context['member']['posts_per_day'], ' ', $txt['posts_per_day'], ')</td>
Add after:
<!-- Begin SMFShop MOD New version -->
</tr><tr>
<td><b>Credits:</b></td>
<td>', $modSettings['shopCurrencyPrefix'], $context['member']['money'], $modSettings['shopCurrencySuffix'], '</td>
<!-- End SMFShop MOD -->