Excel VBA to run tests in QC ALM

I am using below code to run tests in QC. This updates the status of test step and the test run but not the test case status. I'd also have to update tester name .

May I know how to update the test status and tester name.

Dim intTestID, FldPath, TestSetName, i
Dim TestSetFact, tsTreeMgr, tSetFolder, TestSetsList, theTestSet
Dim TestSetIdentifier, TSTestFact, TestSetTestsList, testInstanceF, aFilter
Dim lst, tstInstance

intTestID = "8968"

FldPath = TextBox3.Text '"Root\ProjFold\Release1\BRD"
TestSetName = ComboBox3.Text '"BRD" '

Set Connection = CreateObject("TDApiOle80.TDConnection")
Connection.InitConnectionEx Sheet2.Range("B1").Value2
Connection.Login TextBox1.Text, TextBox2.Text
Connection.Connect ComboBox1.Text, ComboBox2.Text

Set TestSetFact = Connection.TestSetFactory
Set tsTreeMgr = Connection.TestSetTreeManager

Set tSetFolder = tsTreeMgr.NodeByPath(FldPath)
Set TestSetsList = tSetFolder.FindTestSets(TestSetName)
Set theTestSet = TestSetsList.Item(1)
TestSetIdentifier = theTestSet.ID
i = 0
Set TSTestFact = theTestSet.TSTestFactory
Set TestSetTestsList = TSTestFact.NewList("")

Set testInstanceF = Connection.TSTestFactory
Set aFilter = testInstanceF.Filter

aFilter.Filter("TC_TEST_ID") = intTestID
Set lst = testInstanceF.NewList(aFilter.Text)
Set tstInstance = lst.Item(1)   
MsgBox (tstInstance.Field("TS_Name"))
'tstInstance.Status = "Failed"
'tstInstance.Field("TC_STATUS") = Item1.Status '"Passed"
'tstInstance.Post
Dim RunF, runName, NewRun, runStepF, runlst, Item1, runStep2

MsgBox (tstInstance.Field("TS_Subject"))
Set RunF = tstInstance.RunFactory
runName = "Run_" & Month(Date) & "-" & Day(Date) & "_" & Hour(Now) & "-" & Minute(Now) &         "-" & Second(Now)
Set NewRun = RunF.AddItem(Null)
NewRun.Status = "Passed"
NewRun.Name = runName
NewRun.Post
NewRun.CopyDesignSteps
NewRun.Post
Set runStepF = NewRun.StepFactory
Set runlst = runStepF.NewList("")
For Each Item1 In runlst
      Set runStep2 = Item1
      runStep2.Status = "Passed" '
      runStep2.Field("ST_ACTUAL") = "As Expected"
      runStep2.Post
Next

Connection.DisconnectProject
Connection.ReleaseConnection
'Set QC = Nothing
Set Connection = Nothing