Since you're more than 60 days away from your cruise, the HAL website probably won't work by going through the "for booked passengers" link. You can find out shore excursions that are available and the price for each one by going to your itinerary and clicking on each port (use the "find a cruise" link). I wish HAL would change their 60-day rule...I can understand not booking shore excursions more than 60 days in advance, but at least show us what time(s) each one operates so people can do some advance planning!
I was able to print the brochure 4 months prior to our cruise. We selected what we wanted and then waited for the 60 day window to see the exact times. It gave us a lot of time to plan and savor each choice. It made for a lot of fun dinner conversations. I think the planning is a large part of the fun- you get several months of anticipation. Now we leave in 2 days....and I can't wait!