The advice above should solve your problem, but here are some other options for similar problems.

(1) If you already have Publisher, seriously look at copying and pasting your finished text into it. Word is great for reports, but when it comes to desktop publishing of Booklets and such, Publisher is more geared for those types of projects. You will find the management of columns and other book layout features very useful.

(2) When columns are giving me trouble in Word, I will sometimes create two text boxes (just like in Publisher) set positioned to the margins for both vertical and horizontal placement. In Word, you can set overflow text from one text box to flow into the next text box that you specify. You can use text boxes on each page to define your columns. This has a few disadvantages, but would fix the problem of page formatting flowing with text.