Update Another Add-Ons Table in Database?

Hello, I am using Enprise Add-On for Job Costing. This add-on adds the tables below to SAP company database. I had built an enhancements add-on for our company and fill a Matrix with data from a few joined tables in the list below.

I can't seem to be able to update any of these tables using the SAP com objects. The SAPbobsCOM.UserTable does not recognize the Enprise tables. Below is some code that I was trying. Can anyone give example on how I can accomplish this? Any help is deeply appreciated.

Thanks,

Mike

Dim tblJobLines As SAPbobsCOM.UserTable       

tblJobLines = OMComp.UserTables.Item("ENPRISE_JOBCOST_JOBLINES")       

Dim tblSubJobs As SAPbobsCOM.UserTable       

tblSubJobs = OMComp.UserTables.Item("ENPRISE_JOBCOST_SUBJOB")       

Dim sSEQNO As String = ""

Dim sSUBJOB As String = ""      

Try       

     For i As Integer = 0 To tblQuotes.Rows.Count - 1               

          sSEQNO = tblQuotes.Columns.Item("SEQNO").Cells.Item(i).Value

          sSUNJOB = tblQuotes.Columns.Item("SUBJOB").Cells.Item(i).Value               

          tblJobLines.GetByKey(sSEQNO)               

          tblSubJobs.UserFields.Fields.Item("ENTEREDDATE").Value = CType(tblQuotes.GetValue("ENTEREDDATE", i), Date)

          tblJobLines.UserFields.Fields.Item("QTY").Value = CDec(tblQuotes.Columns.Item("QTY").Cells.Item(i).Value)

          tblJobLines.UserFields.Fields.Item("ORIGSELLPR").Value = CDec(tblQuotes.Columns.Item("ORIGSELLPR").Cells.Item(i).Value)

     Next           

     tblJobLines.Update()           

     tblSubJobs.Update()

      LoadMatrix() 'Refresh Matrix with updated values   

Catch ex As Exception           

     Throw       

Finally           

     tblJobLines = Nothing 

     tblSubJobs = Nothing     

End Try