How can I make this box resize itself?

this should do it

<table cellpadding="0" cellspacing="0" border="0" bgcolor=""#C1D7F4" background="images/head_bg.gif"" width="100%" align="center"><tr><td>
<table cellpadding="4" cellspacing="1" border="0" width="100%">
<tr>
<td bgcolor="$post[backcolor]" width="175" valign="top" nowrap>
<a name="post$post[postid]"></a>
$post[firstnewinsert]
<table width="300" border="0" align="center" cellpadding="0" cellspacing="2" bordercolor="#000000" height="157">
<tr bgcolor="#003366">

<td border="1" bordercolor="#000000" height="19" colspan="3">
<div align="left"><smallfont color="#FF9933"><a name="post$post[postid]"></a>EmuCard for UserId $post[userid]</font></div></td>

</tr>
<tr valign="middle" bgcolor="#014b74">

<td border="1" bordercolor="#000000" colspan="3" height="19"><b><smallfont color="white">$post[username]- </font>
$onlinestatus </b></font></td>

</tr>
<tr>

<td colspan="1" width="40%">
</td>


<td border="1" colspan="1" bordercolor="#000000" align="center" height="35" bgcolor="#014b74">$post[avatar]
</td>


<td colspan="1" width="40%">
</td>

</tr>
<tr>

<td height="3" colspan="3">
</td>

</tr>
<tr bgcolor="#014b74">

<td border="1" bordercolor="#000000" height="76" colspan="3"><smallfont>
Posts: $post[posts]<br>
Registered: $post[joindate]<br>
Location: $post[field2]<br>
</smallfont></font>
</td>

</tr>
</table>
<br>
</div>

Edit: Use Attachments.....