Penguin Eater has uploaded the files, saved me some time, see following post.
The down gauge is simple swaps, 2 dds files, one for the bar and one for the gauge. Different shape so different gauge. Curtain, just replace the dds file with black box, of equal size.
Look for gui_down... forget the exact spelling, for the gauge swaps. Curtain, find stage... They'll be obvious when you see them, but exact spelling/spacing escapes me.