When you select other there is a button to add the application that you want to use to open that file
IMHO I suggest that you use word or another like program for everything.
It makes a nice container that you can put just about anything into. You can add footer and a header to identify the document page numbers ECT.
Also
The machine will need to have the application exe in the search path so windows can find the app.
I put a sample doc here that you can use as an example
http://www.waddingtonelectronics.com/pfTPT72000.doc If you just link a bunch of bitmaps w/o identification in them you cant tell what photo goes with what work order or whatever you print it with.
All my doc files have the same name as the part number and that what prints in the header.
JW