To print the correct cat race counterfeit ticket you need to guess the correct week number.
You should have the racing finish line photo. Advance other stuff until you get the photo.
This is the low-spoiler guide for "Race ticket week number" puzzle in Grim Fandango. Unlike in normal walkthrough, you get gradual hints on how to solve the puzzle. Click the big button below to see your first hint. If the hint contains a spoiler, you will be warned about it before clicking.