SQL SERVER2005+VB的疑问（急，在线等）

我执行一个SQL2000+VB的管理系统，现在用SQL2005+VB连接，执行时有一个提示
“此查询使用的不是ANSI外部联接运算符（"*=" "=*")极力建议使用ANSI外部联接运算符（LEFT OUTER JOIN、RIGHT OUTER JOIN）重写些查询”
请问各位，我该怎么解决呢？
附：
Private Sub Refresh_Report()
Dim TmpDate As String

TmpDate = ComboY.Text
If Val(ComboM.Text) < 10 Then
TmpDate = TmpDate + "-0" + ComboM.Text
Else
TmpDate = TmpDate + "-" + ComboM.Text
End If
Adodc1.ConnectionString = conn
Adodc1.RecordSource = "SELECT c.ContractId As 合同编号, Sum(c2.amount) As 费用总计," _
+ "Sum(i.amount) As 收帐总计,Sum(i.amount) - Sum(c2.amount) as 利润" _
+ " FROM Contract c, CostView c2, IncomeView i" _
+ " WHERE c.ContractId *= c2.ContractId" _
+ " And c.ContractId *= i.ContractId" _
+ " And c.SignDate LIKE '" + TmpDate _
+ "%' GROUP BY c.Co

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