OK, well, I didn't actually try this, but here's a section of your template that I took a stab at. The parts in red have to do with the collapsing button, so you want to remove those. The parts in blue are table cells that you can copy and paste to make two copies, and that should give you two cells. The parts in yellow need to change - the colspans from [S]2 to 3[/S] 2 to 4 (as you mentioned below), and the widths from 100% to 50%. (ETA: well, that would give you two equal cells which may not be what you want).
Code:
<!-- what's going on box -->
<table class="tborder" cellpadding="$stylevar[cellpadding]" cellspacing="$stylevar[cellspacing]" border="0" width="100%" align="center">
<thead>
<tr>
<td class="tcat" colspan="2">$vbphrase[whats_going_on]</td>
</tr>
</thead>
$template_hook[forumhome_wgo_pos1]
<if condition="$show['loggedinusers']">
<!-- logged-in users -->
<tbody>
<tr>
<td class="thead" colspan="2">
<a style="float:$stylevar[right]" href="#top" onclick="return toggle_collapse('forumhome_activeusers')"><img id="collapseimg_forumhome_activeusers" src="$stylevar[imgdir_button]/collapse_thead$vbcollapse[collapseimg_forumhome_activeusers].gif" alt="" border="0" /></a>
<a href="online.php$session[sessionurl_q]">$vbphrase[currently_active_users]</a>: $totalonline (<phrase 1="$numberregistered" 2="$numberguest">$vbphrase[x_members_and_y_guests]</phrase>)
</td>
</tr>
</tbody>
<tbody id="collapseobj_forumhome_activeusers" style="$vbcollapse[collapseobj_forumhome_activeusers]">
<tr>
<td class="alt2"><a href="online.php$session[sessionurl_q]"><img src="$stylevar[imgdir_misc]/whos_online.gif" alt="$vbphrase[view_whos_online]" border="0" /></a></td>
<td class="alt1" width="100%">
<div class="smallfont">
<div style="white-space: nowrap"><phrase 1="$recordusers" 2="$recorddate" 3="$recordtime">$vbphrase[most_users_ever_online_was_x_y_at_z]</phrase></div>
<div>$activeusers</div>
</div>
</td> </tr>
</tbody>
<!-- end logged-in users -->
</if>
$template_hook[forumhome_wgo_pos2]
<tbody>
<tr>
<td class="thead" colspan="2">
<a style="float:$stylevar[right]" href="#top" onclick="return toggle_collapse('forumhome_stats')"><img id="collapseimg_forumhome_stats" src="$stylevar[imgdir_button]/collapse_thead$vbcollapse[collapseimg_forumhome_stats].gif" alt="" border="0" /></a>
<phrase 1="$vboptions[bbtitle]">$vbphrase[x_statistics]</phrase>
</td>
</tr>
</tbody>
<tbody id="collapseobj_forumhome_stats" style="$vbcollapse[collapseobj_forumhome_stats]">
<tr>
<td class="alt2"><img src="$stylevar[imgdir_misc]/stats.gif" alt="<phrase 1="$vboptions[bbtitle]">$vbphrase[x_statistics]</phrase>" border="0" /></td>
<td class="alt1" width="100%">
<div class="smallfont">
<div>
$vbphrase[threads]: $totalthreads,
$vbphrase[posts]: $totalposts,
$vbphrase[members]: $numbermembers
</div>
<div><phrase 1="member.php?$session[sessionurl]u=$newuserid" 2="$newusername">$vbphrase[welcome_to_our_newest_member_x]</phrase></div>
$template_hook[forumhome_wgo_stats]
</div>
</td> </tr>
</tbody>
<tbody>
<tr>
<td class="thead" colspan="2">
<a style="float:$stylevar[right]" href="#top" onclick="return toggle_collapse('forumhome_events')"><img id="collapseimg_forumhome_events" src="$stylevar[imgdir_button]/collapse_thead$vbcollapse[collapseimg_forumhome_events].gif" alt="" border="0" /></a>
<if condition="$show['todaysevents']">$vbphrase[todays_events]<else /><phrase 1="$vboptions[showevents]">$vbphrase[upcoming_events_for_the_next_x_days]</phrase></if>
</td>
</tr>
</tbody>
<tbody id="collapseobj_forumhome_events" style="$vbcollapse[collapseobj_forumhome_events]">
<tr>
<td class="alt2"><a href="calendar.php$session[sessionurl_q]"><img src="$stylevar[imgdir_misc]/calendar.gif" alt="$vbphrase[calendar]" border="0" /></a></td>
<td class="alt1" width="100%"><div class="smallfont"><if condition="$show['upcomingevents']">$upcomingevents
<else />
There are no upcoming events on Trasion.<br />Please check the <a href="calendar.php">calendar</a> to add events to the list.</if></div></td>
</tr>
</tbody>
$template_hook[forumhome_wgo_pos5]
</table>
<!-- end what's going on box -->