Again, if you execute hb_py_gp_apply_userinfo_in the way it is described here and you haven't tinkered with the database manually it should be working fine.
If the execution fails but the user has a row in TAccountMst already, you can also use this simple update query:
Code:
USE [INI3Bill_DB]
GO
DECLARE @cookiesToAdd int
DECLARE @totalCookies int
DECLARE @accountName varchar(32)
SET @accountName = N'tsukasa'
SET @cookiesToAdd = 100000
-- Get the old amount (we could do this in one step during update, but oh well)
SELECT TOP 1 @totalCookies = CookieAmt FROM TAccountMst
WHERE UserID = @accountName
-- Increase the value by the amount we want
SET @totalCookies = @totalCookies + @cookiesToAdd
-- And update the amount of cookies for the account
UPDATE TAccountMst
SET CookieAmt = @totalCookies
WHERE UserID = @accountName
GO