With a project open and the audio file in the audio sync window (with the SYNC button not illuminated, if it is, click it and then click OK), then do the following.

In your animation find a point that you want your audio to match up to.

In the Audio sync window, go to a point where the audio is at the point to match the vision.

Now in the Audio sync window, click the "Sync" button.  This will lock the audio to the animation and they will remain in sync. 

Play the animation and the audio should match up.   There are also options if you right click on the audio track (such as Set end point), check these out