Well you are asking to get a lot in a limited space.
Try this. Open themes/your_theme/theme.php, and find;
// HTML template for the ALBUM admin menu displayed in the album list
$template_album_admin_menu = <<<EOT
<table border="0" cellpadding="0" cellspacing="1">
<tr>
<td align="center" valign="middle" class="admin_menu">
<a href="delete.php?id={ALBUM_ID}&what=album" class="adm_menu" onclick="return confirm('{CONFIRM_DELETE}');">{DELETE}</a>
</td>
<td align="center" valign="middle" class="admin_menu">
<a href="modifyalb.php?album={ALBUM_ID}" class="adm_menu">{MODIFY}</a>
</td>
<td align="center" valign="middle" class="admin_menu">
<a href="editpics.php?album={ALBUM_ID}" class="adm_menu">{EDIT_PICS}</a>
</td>
</tr>
</table>
Now change each cell to be on it's own row, like this;
// HTML template for the ALBUM admin menu displayed in the album list
$template_album_admin_menu = <<<EOT
<table border="0" cellpadding="0" cellspacing="1">
<tr>
<td align="center" valign="middle" class="admin_menu">
<a href="delete.php?id={ALBUM_ID}&what=album" class="adm_menu" onclick="return confirm('{CONFIRM_DELETE}');">{DELETE}</a>
</td></tr><tr>
<td align="center" valign="middle" class="admin_menu">
<a href="modifyalb.php?album={ALBUM_ID}" class="adm_menu">{MODIFY}</a>
</td></tr><tr>
<td align="center" valign="middle" class="admin_menu">
<a href="editpics.php?album={ALBUM_ID}" class="adm_menu">{EDIT_PICS}</a>
</td>
</tr>
</table>
This will mean the buttons sit on top of each other, not side by side. It will make it narrower, but longer.