Trigger And Update() Function!

In the SQL 7.0 Documentation is indicated that the UPDATE(<fieldname>), if
used in a isert/update trigger, it return TRUE or FALSE based on presence of <field> in the SET List, if the trigger was fired by an UPDATE operation, or in the list of field to fill, if the trigger was fired by an INSERT operation.

Below there is a piece of code that demostrate the false documentation
assertion in the case of a trigger fired by an INSERT operation, infact even
if i have specified only the FIELD1 in INSERT Statement the trigger Print in the screen that i have touched FIELD2 too.

Now the SP1 don't solve this BUG, even if i had read some month ago (before
that SP1 was out) that in SP1 this will be fixed!

Anyone Can Help me to solve this problem, indicating me where i can post the
problem to sensitize the Microsoft's Service Pack Factory ?

Thank in Advance

PS:Sorry for my Bad English .... correct me please if some part are not
readable!

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CREATE TABLE TEST (FIELD1 INTEGER , FIELD2 INTEGER )
GO

CREATE TRIGGER TriggerIU_Test
ON TEST
FOR INSERT, UPDATE
AS

IF UPDATE(FIELD1) PRINT 'Field 1 Touched'

IF UPDATE(FIELD2) PRINT 'Field 2 Touched'
GO

print 'InsertIng '
INSERT INTO TEST (FIELD1) VALUES (2)

print 'Updating '
UPDATE TEST set FIELD1 = 1

GO
DROP TABLE TEST
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