Access 2000 RecordSet - Search for Record and Edit it

I am using access 2000 and I want to be able to do this.

User comes up a form and enters a primary key then tabs off. Access finds that record and displays the information in the appropriate text boxes. The user can then edit the information and click complete.

Currently when the user enters the primary key Access thinks that the user is trying to add another record with the same primary key. I am thinking the problem might be that the form is bound to that table, but when I unbind it the code does not work. Code is listed below.

Thanks in advance for any help you can provide!

CODE STARTS HERE

Private Sub txtTagNumber_AfterUpdate()

Dim strSearch As String

On Error GoTo ErrorHandler

strSearch = "[TagNumber] = " & Me![txtTagNumber]
Me.Requery
Me.RecordsetClone.FindFirst strSearch
Me.Bookmark = Me.RecordsetClone.Bookmark

ErrorHandlerExit:
Exit Sub

ErrorHandler:
MsgBox "Error No: " & Err.Number & "; Description: " _
& Err.Description
Resume ErrorHandlerExit

End Sub

Public Sub FindMeth()
Dim db As Database
Dim rec As DAO.Recordset
Dim intPK As Integer


Set db = CurrentDb()
Set rec = CurrentDb.OpenRecordset("SELECT * FROM tblNames", dbOpenDynaset)

intPK = 4

rec.FindFirst "PK = " & intPK

Do While rec.NoMatch = False

Debug.Print rec("Name") & " is a " & rec("Major") & " major"
rec.FindNext "PK = " & intPK

Loop

End Sub

Thank you!