Open (yourtheme)/display.template.php
(My display.template.php is located in E:\D2K5Server\www\Themes\babylon\ for example, easier for you to find it this way incase you don't know where it is)
Find:
', $txt[26], ': ', $message['member']['posts'], '';
Add Under:
echo "<a href='$scripturl?action=shop;do=invother2;member={$message['member']['username']}'>Inventory</a><br>";
echo '<a href="', $scripturl, '?action=shop;do=sendmoney;member=', $message['member']['username'], '">Send Money</a><br />';
echo '
', $modSettings['shopCurrencyPrefix'], $message['member']['money'], $modSettings['shopCurrencySuffix'], '<br /><br />';
Save it and re-upload the display.template.php, it should now appear
I've modified the original abit, but you can always change it how you want it to look.