Qtp can not identify existing script

[prit deo]

pls help,
qtp has .net add in.
Windows 32 bits

Existing script

Code:

SwfWindow("Fax Manager").Activate
SwfWindow("Fax Manager").SwfListView("SwfListView_2").Select 0
SwfWindow("Fax Manager").SwfListView("SwfListView_2").DragItem 0
SwfWindow("Fax Manager").SwfTreeView("MasterFileTree").Drop 111,293

SwfWindow("Fax Manager").Activate
SwfWindow("Fax Manager").SwfListView("SwfListView_2").Select 0
SwfWindow("Fax Manager").SwfListView("SwfListView_2").DragItem 0
SwfWindow("Fax Manager").SwfTreeView("MasterFileTree").Drop 111,293

-------------------------------------------
List view is not recognised anymore and getting error message object not identified

Current script

Code:

SwfWindow("Fax Manager").Activate
SwfWindow("Fax Manager").SwfObject("Thumbnails").click116.19
    
SwfWindow("Fax Manager").SwfTreeView("masterFileTree").SetFocus

Please help