How to create an update form

I am facing some problems when creating an update form. I have created the form page and the action page. It seems to be working but I have a couple of issues with a list menu and a radio button.

The code is:

<!--- Check that ID was provided --->
<cfif NOT IsDefined("URL.ID")>
  <h1>You did not specify the Alumni ID</h1>
<cfabort>
</cfif>

<!--- Get the alumni record --->
<cfquery datasource="alumniupdateform" name="queryResults">
SELECT *
FROM Alumni
WHERE ID=#URL.ID#
</cfquery>

<!--- Get countries --->
<cfquery name="Countryquery" datasource="admissions">
      SELECT * FROM Countries ORDER BY CountryName ASC
</cfquery>

<!--- Page header --->
<cfinclude template="includes\header.cfm">

<!--- Update alumni form --->
<cfform action="includes\update_action.cfm">
<!--- Embed primary key as a hidden field --->

<cfoutput>
<input type="radio" name="WantRepresent" id="WantRepresent" value="#queryResults.WantRepresent#">
</cfoutput>

<cfoutput>
<input type="hidden" name="ID" value="#queryResults.ID#">
</cfoutput>
<table align="center" bgcolor="">
<tr>
  <th colspan="2">
    <p> </p>
    <p><font size="+1">Update a Alumni Contact</font></p>
    <p> </p></th>
</tr>
<tr>
  <td>
   Name:
  </td>
  <td>
   <cfinput type="Text"
            name="aName"
            value="#Trim(queryResults.aName)#"
            message="NAME is required!"
            required="Yes"
            validateAt="onSubmit,onServer"
            size="50"
            maxlength="100">
  </td>
</tr>
<tr>
  <td>
   Last Name:
  </td>
  <td><cfinput type="Text"
            name="aLastName"
            value="#Trim(queryResults.aLastName)#"
            message="LAST NAME is required!"
            required="Yes"
            validateAt="onSubmit,onServer"
            size="50"
            maxlength="100"></td>
</tr>
<tr>
  <td>
   Company:
  </td>
  <td>
   <cfinput type="Text"
            name="aCompany"
            value="#Trim(queryResults.aCompany)#"
            message="COMPANY is required!"
            required="Yes"
            validateAt="onSubmit,onServer"
            size="50"
            maxlength="100">
            </td>
</tr>
<tr>
   <td>E-Mail</td>
   <td><cfinput type="Text"
            name="aEmail"
            value="#Trim(queryResults.aEmail)#"
            message="E-MAIL is required!"
            required="Yes"
            validateAt="onSubmit,onServer"
            size="50"
            maxlength="100"></td>
</tr>
<tr>
  <td>
   Preferred Postal Adress::
  </td>
  <td>
   <cfoutput></cfoutput>
   <cfinput type="text"
   name="aPreferredAdress"
   value="#Trim(queryResults.aPreferredAdress)#"
   message="Please provide the company name"
   required="yes"
   validateAt="onSubmit,onServer"
   size="80"
   maxlength="100">
  </td>
</tr>
<tr>
  <td>
   Home Phone:
  </td>
  <td>
   <cfinput type="Text"
            name="aHomePhone"
            value="#Trim(queryResults.aHomePhone)#"
            message="Home Phone is required"
            required="Yes"
            validateAt="onSubmit,onServer"
            size="20"
            maxlength="20">
  </td>
</tr>
<tr>
  <td>
   Work Phone:
  </td>
  <td><cfinput type="Text"
            name="aWorkPhone"
            value="#Trim(queryResults.aWorkPhone)#"
            message="Work Phone is required"
            required="Yes"
            validateAt="onSubmit,onServer"
            size="20"
            maxlength="20"></td>
</tr>
<tr>
  <td>
   Cell Phone:
  </td>
  <td><cfinput type="Text"
            name="aCellPhone"
            value="#Trim(queryResults.aCellPhone)#"
            message="Cell Phone is required"
            required="Yes"
            validateAt="onSubmit,onServer"
            size="20"
            maxlength="20"></td>
</tr>
<tr>
   <td>Country:</td>
   <td><!--- Country list --->
   <select name="acountries">
    <cfoutput query="Countryquery">
     <option value="#CountryName#"<cfif Countryquery.CountryName IS queryResults.aCountry>selected</cfif>>#CountryName#</option>
    </cfoutput>
   </select></td>
</tr>
<tr>
   <td colspan="2"></td>
   </tr>
<tr>
   <td colspan="2"> <strong>
       
        </strong>
        <cfinput type="radio" name="WantRepresent" id="WantRepresent" value="Yes">
        Yes, I want to be a class representative of
       
<strong>
  <cfinput type="text" name="aYear" id="aYear" style="visibility:hidden">
</strong></td>
   </tr>
<tr>
   <td colspan="2"> </td>
</tr>
<tr>
  <td colspan="2" align="center">
   <input type="submit" value="Update">
  </td>
   </tr>
</table>

</cfform>

<!--- Page footer --->
<cfinclude template="includes\footer.cfm">

and the action code is this:

<!--- Update movie --->
<cfquery datasource="alumniupdateform" name="queryResults">
SELECT *
FROM Alumni
</cfquery>

<cfquery datasource="alumniupdateform">
UPDATE Alumni
SET aName='#Trim(FORM.aName)#',
    aLastName='#Trim(FORM.aLastName)#',
    aCompany='#Trim(FORM.aCompany)#',
    aEmail=#FORM.aEmail#,
    aPreferredAdress='#Trim(FORM.aPreferredAdress)#',
    aHomePhone='#Trim(FORM.aHomePhone)#',
    aWorkPhone='#Trim(FORM.aWorkPhone)#',
    aCellPhone='#Trim(FORM.aCellPhone)#',
    aCountry='#(FORM.acountries)#'
WHERE Id="#queryResults.ID#"
</cfquery>

<!--- Page header --->
<cfinclude template="includes\header.cfm">

<!--- Feedback --->
<cfoutput>
<h1>Contact '#FORM.aName#' updated</h1>
</cfoutput>

<!--- Page footer --->
<cfinclude template="includes\footer.cfm">

If someone can help me with this I would really appreciate.

Thanks