page1.asp
<html>
<body>
<form method=POST action="page2.asp"
<input type="text" name="username" value="<%=Request.Form("username")%>">
<input type="text" name="entry2" value="<%=Request.Form("entry2")%>">
<input type="text" name="entry3" value="<%=Request.Form("entry3")%>">
<input type="submit">
</form>
</body>
</html>
Page2.asp
<html>
<body>
Please enter this additional information before continuing:
<form method=POST action="page1.asp">
<input type="text" name="moreinfo1">
<input type="text" name="moreinfo2">
<input type="text" name="moreinfo3">
<input type="hidden" name="username" value="<%=Request.Form("username")%>">
<input type="hidden" name="entry2" value="<%=Request.Form("entry2")%>">
<input type="hidden" name="entry3" value="<%=Request.Form("entry3")%>">