Creo que te has confundido de foro, este es el de php
Posible solución:
<%@ Language=VBScript %>
<%
Dim mon,tue,mChecked,tChecked
mon=1
tue=0
if mon=1 then
mChecked="checked"
else
mChecked=""
end if
if tue=1 then
tChecked="checked"
else
tChecked=""
end if
%>
<HTML>
<HEAD>
</HEAD>
<BODY>
<BR>
<INPUT type="checkbox" name="mon" <%=mChecked%>>
<BR>
<INPUT type="checkbox" name="tue" <%=tChecked%>>
<BR>
<% Response.Write "mon = " & mon %> <BR>
<% Response.Write "tue = " & tue %> <BR>
</BODY>
</HTML>