In A2k I use remote text (express menu under text). This is the current annonation I have been using:
FILE: $(getvar,"dwgname") | FOLDER: $(getvar,"dwgprefix") | PLOT TIME: $(edtime,0,MON DD","YYYY - H:MMam/pm)
I have not figured out how to put the layout information in yet. Ensure that you d/l the rtext patch, if not it causes rotation problems in layout space.