the clear cart code is at line 70 - 80:
<%
' WA eCart Clear Cart
if (cStr(Request.Form("stickersBE_Clear_1")) <> "" OR cStr(Request.Form("stickersBE_Clear_1.x")) <> "") then
set stickersBE = WA_eCart_ClearCart(stickersBE)
Redirect_redirStr="index.asp"'_redirStr
if (Redirect_redirStr <> "") then
stickersBE_redirStr = Redirect_redirStr
end if
stickersBE_cartAction = "ClearCart"
end if
%>
you can edit the if statement;
if (cStr(Request.Form("stickersBE_Clear_1")) <> "" OR cStr(Request.Form("stickersBE_Clear_1.x")) <> "") then
to:
if ((Request.ServerVariables("Request_Method") = "POST")) then
so it will trigger when the order is processed to clear the cart,
you will also want to move the code block so it is after the email, and store Cart summary / details behaviors.