asp.net 2.0 repeater & table

[filmar]

I want to orginize the show of repeater data by table:

<asp:Repeater runat="server" ID="rptFItem">
<HeaderTemplate >
<table width="780" style="margin-left:186px; table-layout:fixed" cellpadding="0" border="0">
</HeaderTemplate>
<ItemTemplate >
<tr>
<td style="border-bottom: 1px dotted #aaaaaa;font-size: small;" align="left">
<span style="text-decoration: underline">Crea te Date:</span>&nbsp;<%#E val("Date_Input ") %>
</td>
<td style="border-bottom: 1px dotted #aaaaaa;font-size: small;" align="right">
<span style="text-decoration: underline">Auth or:</span>&nbsp;<%#E val("UserName") %>
</td>
</tr>
<tr>
<td style="border-bottom: 1px dotted #aaaaaa;font-size: small;" colspan="2" align="left">
Topic:<b><%#Eva l("Title") %></b>
</td>
</tr>
<tr>
<td style="border-bottom: 1px dotted #aaaaaa;font-size: small;" colspan ="2" align="left">
<%# Eval("Text")%>
</td>
</tr>
</ItemTemplate>
<FooterTemplate >
</table>
</FooterTemplate>
</asp:Repeater>

And if "Text" is very long my page is becoming as long as it can, but I want it to be a fixed width size like it signed there.
May be i do something wrong?

Regards