Oh, I thought you wanted them hidden. Try this:
CODE
</td></tr></table>
</td></tr></table>
<style>
.userProfileDetail, .userProfileNetworking {display:auto;}
table.interestsAndDetails, .userProfileCompany, .userProfileSchool {display:none;}
div.InterestsDiv {overflow:auto; width:300px; height:200px;}
div.InterestsDiv table {width:100%;}
</style>
<div class="InterestsDiv">
<table bordercolor="6699cc" cellspacing="0" cellpadding="0" bgcolor="ffffff" border="1" class="newInterests">
<tr>
<td class="text tdborder" valign="middle" align="left" width="300" bgcolor="6699cc" wrap="" style="WORD-WRAP:break-word">
<span class="whitetext12">title here</span>
</td></tr>
<tr valign="top"><td class="tdborder">
<table bordercolor="000000" cellspacing="3" cellpadding="3" align="center" bgcolor="ffffff" border="0">
<tr><td valign="top" align="left" width="100" bgcolor="b1d0f0" nowrap="">
<span class="lightbluetext8">General</span>
</td><td width="175" bgcolor="d5e8fb" style="WORD-WRAP: break-word"></div>
If you want to add more stuff in your custom Interests section, make sure you add it before the closing <div> tag. Your Details/Networking sections should appear under the scrollbox.