If you are unsure where you have installed Weave Words, the easiest way to find out is to click the START button at the bottom of your Windows desktop, then click on SEARCH, then finally click on FILES OR FOLDERS. In the search dialog that appears, enter the following(including quotes):

"phrase packs"

Now click on the 'search now' button. This will search your computer for the Weave Words installation. Once it is found, you will see the phrase packs folder appear in the search window. And if you save the downloaded phrase packs into that folder, they will appear in the game.