Thread:Extension talk:MsUpload/Not working for me in MW 1.20.3

I've loaded this and MsLinks, and verified with Special:Version. I'm using the Vector skin and the WikiEditor. Perhaps there's a conflict with another extension. The other extensions loaded are TopTenPages, CategorySuggest, CreateBox, GoogleMapsFn, LinkTitles, MediawikiPlayer, MiniMp3, NiceCategoryList, Recently Created Page List, SimpleTable, FancyBoxThumbs, Add Article To Category, and FileAttach.