[ic] How to Discount UPS shipping???

[David Etheredge]

 I previously posted this question but am still not able to solve this 
problem..

 I am trying to give my customers a 50 percent discount on international
 shipping using price divide but it does not appear to work. The same
 charges appear to calculate at full price.

 from shipping.asc

 ___________________________________________________________________
 XPR UPS Worldwide Express weight 0 0 e Nothing to ship! {'at_least' => 
"32.00",'adder' => "10.00",'ups' => "1",'PriceDivide' =>
 "2",'ui_ship_type' => "UPSE:XPR",}
 XPR UPS Worldwide Express weight 0 150 f [ups-query mode=XPR 
weight="@@TOTAL@@"] {'PriceDivide' => "2",}
 XDM UPS Worldwide Express Plus weight 0 0 e Nothing to ship! {'at_least' => 
"32.00",'adder' => "15.00",'geo' => "zip",'ups' => "2",'PriceDivide' => 
"2",'ui_ship_type' => "UPSE:XDM",'origin' => "35126",}
 XDM UPS Worldwide Express Plus weight 0 150 f [ups-query mode=XDM 
weight="@@TOTAL@@"] {'PriceDivide' => "2",}
 XPD UPS Worldwide Expedited weight 0 0 e Nothing to ship! {'at_least' => 
"39.00",'adder' => "12.00",'ups' => "1",'PriceDivide' => "2",'origin'> => 
"35126",'ui_ship_type' => "UPSE:XPD",}
 XPD UPS Worldwide Expedited weight 0 150 f [ups-query mode=XPD 
weight="@@TOTAL@@" origin="35126"] {'PriceDivide' => "2",}
_______________________________________________________________________


Any ideas as to how to implement this discount would be appreciated.

David