OK. I've finally started to get into the routine.
I decided to "take it easy" and really not push myself to the limits as I am doing all these at once. Unlike a regular training program it is not slowly increasing your reps to a set routine but rather increasingly them to a set short term maximum which i assume will become much more stressful as the weeks go on.
My initial tests scored Week 3 for Push-ups, Week 4 for Sit-Ups and Week 3 for Squats. I rounded down to one week previous to the week tested for the reasons mentioned above. This resulted in my start routine being Week 2 for Push-ups, Week 3 for Sit-Ups, and Week 2 for Squats. (Yes, I know, I'm out of shape.)
The push-ups sounded the hardest but my arms aren't feeling the burn nearly as much as my legs. Time to pull out the old mountain bike and do some leisure waterfront trail riding to get the joints moving.