Using SEEK on Multiple Field Index

[TURNERMICH]

I am using Access2000 Mdb file.

Set db = OpenDatabase("c:\accounting\accounting.mdb&quot
Set td = db.OpenRecordset("TheData", dbOpenTable)
Set td2 = db.OpenRecordset("DataUnique", dbOpenTable)
Set td3 = db.OpenRecordset("Results", dbOpenTable)

td3.Index = "MainKey"


=============================
The Key "MainKey" is made up of...
Rdate Date
TheItem Numeric
TheNumber Numeric

============================

td3.Seek ??????????????


Appreciate some help with the SEEK command to look up the combined Key.