The below code will show you how to upload a defect using the OTA API and VBScript
'================================================
set tdc = createobject("TDApiOle80.TDConnection")
tdc.InitConnectionEx "http://yourURL/qcbin"
tdc.Login "yourName","yourPassword"
tdc.Connect "yourDomain","yourProject"
'============================================
DefectID = 17
Set BugFactory = tdc.BugFactory
Set BugFilter = BugFactory.Filter
BugFilter.Filter("BG_BUG_ID") = DefectID
Set BugList = BugFilter.NewList
Set myBug = BugList.Item(1)
'Just need to know the qc field name value
myBug.Field("BG_STATUS") = "Fixed"
myBug.Post
Set BugFilter = Nothing
Set myBug = Nothing
Set BugFactory = Nothing
Set BugFilter = Nothing