URL Parameters Not Appearing In ASP.MVC When Using Variant Of Html.BeginForm

I've got a view that defines a form as

<% using (Html.BeginForm( "Update", "CcisCase", FormMethod.Post, new { id = "ccisEditForm" } ))

with a submit button:

In the RegisterRoutes method (in the HttpApplication-derived class in global.asax.cs), I've got:
routes.IgnoreRoute( "{resource}.axd/{*pathInfo}" );
routes.MapRoute(
"CcisCase",
"CcisCase/{action}/{cmDatabaseId}/{caseId}",
new { Controller = "CcisCase", Action = "CcisCaseEdit", caseId = "" } );

The url generated by MVC ends with "/Update" but there are no parameters. What am I doing wrong?

Bob</textarea></p>
<input type='hidden' name='ID[10]' value='89483' />
<input type='hidden' name='URL[10]' value=[URL]/>
<input type='hidden' name='CAT[10]' value='MVC' />
<input type='hidden' name='BOARD[10]' value='microsoft' />
<input type='hidden' name='P_DATE[10]' value='Dec 06, 2009 07:31 PM' />
<input type='hidden' name='RANDOM[10]' value='KmdWg23CB' />
<input type='hidden' name='REPLIES[10]' value='2' />
<input type='hidden' name='USER[10]' value='aziz' />
<p><input class=subject type='text' size='90' name='SUBJECT[10]' value='MVC :: Url.Action vs Html.ActionLink' /><select name='INDEXED[10]'><option value='1' selected>UPDATE</option><option value='2'>DELETE</option></select>Dec 06, 2009 07:31 PM - Replies: 2 CAT: MVC<a target=_blank href=[URL]>View</a></p>
<p> <textarea rows=10 cols=100 name='POST[10]' onfocus='setSelRange(this, 0, 0)'/>Is there any advantage or disadvantage in using either one over the other?</textarea></p>
<input type='hidden' name='ID[11]' value='135924' />
<input type='hidden' name='URL[11]' value=[URL]/>
<input type='hidden' name='CAT[11]' value='MVC' />
<input type='hidden' name='BOARD[11]' value='microsoft' />
<input type='hidden' name='P_DATE[11]' value='Oct 12, 2010 09:02 PM' />
<input type='hidden' name='RANDOM[11]' value='E8p84FelS' />
<input type='hidden' name='REPLIES[11]' value='4' />
<input type='hidden' name='USER[11]' value='aziz' />
<p><input class=subject type='text' size='90' name='SUBJECT[11]' value='MVC :: MVC2: Change the default generated HTML when creating a strongly typed view' /><select name='INDEXED[11]'><option value='1' selected>UPDATE</option><option value='2'>DELETE</option></select>Oct 12, 2010 09:02 PM - Replies: 4 CAT: MVC<a target=_blank href=[URL]>View</a></p>
<p> <textarea rows=10 cols=100 name='POST[11]' onfocus='setSelRange(this, 0, 0)'/>

Is there any way to change the HTML that is generated by default when you create a strongly typed view in MVC2? I currently get a structure like this:

[Code]....

I want to change it to a structure like this:

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; <div>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; <div><%: Html.ValidationMessageFor(model => model.user_login) %></div>
<div><%: Html.LabelFor(model => model.user_login) %></div>
<div><%: Html.TextBoxFor(model => model.user_login) %></div>
<div>The username the user will use to log into the application.</div>
</div>
<div></div>