bug 5.0

i found this in codeunit 12/UnapplyCustLedgEntry(GenJnlLine2,DtldCustLedgEntry)
function

GenJnlLine.TRANSFERFIELDS(GenJnlLine2);
IF GenJnlLine."Document Date" = 0D THEN
  GenJnlLine."Document Date" := GenJnlLine."Posting Date";

InitCodeUnit;

IF Cust."No." <> DtldCustLedgEntry."Customer No." THEN
  Cust.GET(DtldCustLedgEntry."Customer No.");
Cust.CheckBlockedCustOnJnls(Cust,0,TRUE);

Cust.TESTFIELD("Customer Posting Group");
CustPostingGr.GET(Cust."Customer Posting Group");
CustPostingGr.TESTFIELD("Receivables Account");

VATEntry.LOCKTABLE;
DtldCustLedgEntry.LOCKTABLE;
CustLedgEntry.LOCKTABLE;

DtldCustLedgEntry.TESTFIELD("Entry Type",DtldCustLedgEntry."Entry Type"::Application);

DtldCustLedgEntry2.RESET;
DtldCustLedgEntry2.FINDLAST;
NextDtldLedgEntryEntryNo := DtldCustLedgEntry2."Entry No." + 1;
DtldCustLedgEntry2.SETCURRENTKEY("Transaction No.","Customer No.","Entry Type");
//////This one
DtldCustLedgEntry2.ASCENDING(FALSE);
//////This one
DtldCustLedgEntry2.SETRANGE("Transaction No.",DtldCustLedgEntry."Transaction No.");
DtldCustLedgEntry2.SETRANGE("Customer No.",DtldCustLedgEntry."Customer No.");
DtldCustLedgEntry2.SETFILTER("Entry Type",'>%1',DtldCustLedgEntry."Entry Type"::"Initial Entry");
//////This one
DtldCustLedgEntry2.FINDSET;//////This one

the //////This one lines, are conflicting, as findset can't be used for descending orders. Currently i've not got a 5sp1 to view, does someone know if this thing solved in the service pack?