An excellent step-by-step tutorials comes with OrCAD software itself
Menu: Help -> Learning Capture...
and: Help -> Learning Layout..
There are also some OrCAD tutorials in this group: **broken link removed** links and files sections. Links are public, for files you need to join the group.
No, that's not the case. OrCAD s still supproted. Cadence is goung to sunset the OrCAD layout and replace it with OrCAD PCB Designer. The latter is essentially a limited version of Allegro.
More in this press release: **broken link removed**
More discussion here **broken link removed**