ahora te envio mi codigo que es la pagina (b) que es la que llamo desde la pagina (a)
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<FORM name="frmDatos" id="frmDatos" method="post">
<table border="0" width="100%">
<tr>
<th colspan="6" class="transparent titulomenu" scope=col>
<input name="txtTitulo" value="Grouping - Functionality" class="transparent" >
<input name="cmpId" type="hidden" >
</th>
</tr>
<tr><td><blockquote></blockquote></td></tr>
<tr><td><blockquote></blockquote></td></tr>
<tr>
<td valign="top">Grouping</td>
<td valign="top">
<select name="Grouping" id="Grouping" class="select0">
<%
DIM Rs
SQL = "SELECT ID, DESCRIPTION FROM GROUPING"
' set Rs = Con.execute(sql)
set Rs = connBD.Execute(SQL)
DO WHILE NOT Rs.EOF
if cdbl(Rs("id")) = cdbl(request("id")) then
%>
<option value="<%=Rs("ID")%>" selected><%=Rs("DESCRIPTION")%>
<%
else
%>
<option value="<%=Rs("id")%>"><%=Rs("DESCRIPTION")%>
<%
end if
Rs.Movenext
loop
set Rs=nothing
%>
</select>
</td>
<td valign="top">Functionality</td>
<td valign="top">Assigned Functionality</td>
</tr>
<tr>
<td></td>
<td></td>
<td valign="top">
<select name="Functionality" multiple="multiple" size="10" id="Functionality" class="select2">
<%
SQL = "SELECT ID, DESCRIPTION FROM FUNCTIONALITY WHERE DESCRIPTION <> 'TO FINISH'"
set Rs = connBD.Execute(SQL)
DO WHILE NOT Rs.EOF
%>
<option value="<%=Rs("Id")%>"><%=Rs("DESCRIPTION")%>
<%
Rs.Movenext
loop
set Rs=nothing
%>
</select>
</td>
<td valign="top">
<div class="list2">
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espero se entienda desde ya gracias