Okay then, here's a simple template mod that will do what you want.
Note: You will find this in two places so apply this apply this to both.
Open the SHOWTHREAD template and find:
PHP Code:
<if condition="$show['pagenav']"><td align="$stylevar[right]">$pagenav</td></if>
Above it add:
PHP Code:
<td align="$stylevar[right]">$forumjump</td>
Optionally, you may want to remove it from it's original location, I would recommend it because the forum jump boxes can be server intensive especially with a lot of forums:
PHP Code:
<tr>
<td>
$forumjump
</td>
</tr>
That's it!