I can repeat the first row by checking "Repeat row as table header" in the Table properties but I don't know how to make the top two rows repeat. Any ideas?
You can set the top two rows to repeat as header. You just have to select them at the same time when changing the option so that they both to repeat together.
I don't have Word 2007 or 2010 handy to take screenshots of, so these are showing 2003, but the process is the same in all three.
First select both rows at the same time, then access table properties:
Now you can set both rows to repeat as a header together:
And both these rows will now repeat, job done: