I use the following code, 

<%@ Page Language="C#"%>
<%@ Register TagPrefix="CE" Namespace="CuteEditor" Assembly="CuteEditor" %>
<div>
    <div class="leftfloat" style="float:left">
        <div>
            <label for="General">General <span class="required">*</span></label>
            <CE:Editor ID="General" runat="server" AutoConfigure="Minimal"  ShowBottomBar="false" Height="100px" Width="455px" />
        </div>
        <div>
            <label for="ClinicalSupport">Clinical Support <span class="required">*</span></label>
            <CE:Editor ID="ClinicalSupport" runat="server" AutoConfigure="Minimal"  ShowBottomBar="false" Height="100px" Width="455px" />
        </div>
        <div>
            <label for="OperationalImpact">Operational Impact <span class="required">*</span></label>
            <CE:Editor ID="OperationalImpact" runat="server" AutoConfigure="Minimal"  ShowBottomBar="false" Height="100px" Width="455px" />
        </div>
    </div>
    <div class="rightfloat" style="float:right">
        <div>
            <label for="Strategic">Strategic and Market Impact <span class="required">*</span></label>
            <CE:Editor ID="Strategic" runat="server" AutoConfigure="Minimal"  ShowBottomBar="false" Height="100px" Width="455px" />
        </div>
        <div>
            <label for="FinancialImpact">Financial Impact <span class="required">*</span></label>
            <CE:Editor ID="FinancialImpact" runat="server" AutoConfigure="Minimal"  ShowBottomBar="false" Height="100px" Width="455px" />
        </div>
        <div>
            <label for="CustomerSatisfaction">Customer Satisfaction <span class="required">*</span></label>
            <CE:Editor ID="CustomerSatisfaction" runat="server" AutoConfigure="Minimal"  ShowBottomBar="false" Height="100px" Width="455px" />
        </div>
    </div>
</div>

I run it in ie6, it looks fine,

 

 

 

Regards,
Eric