Set up two instances of the portal next to each other. The one on the left (double-click on the portal in layout mode) shows records 1-48. The other, 49-96. Of course this will limit your horizontal screen space . . .
Given the large number of portal records, you may find you can get a nicer report if you create a summary report layout based on your portal's table occurrence. You can use your existing relationships to pull in fields from your parent table and place them in a header or subsummary part.
Terms you can research here or in Filemaker's help to learn more:
List View Layouts
You should indeed print from the child table - AND you can set the print layout to print in columns.
haha wow, pure genius... thanks :)
thanks for everyone's advice, RickWhitelaw has the immediate fix, but I know I need to get more familiar with summary reports and will figure them out in the near future