Hi
If you are using one audio track and your audio clips are A and B and you want them in that order then place the red cursor at the start and then load audio A to the sequence at the cursor position. Step along the timeline using the >II button (or drag the cursor line) until you are at the end of audio A. Now add audio B to the cursor position. You will now have audio A followed by audio B
If by some chance you got them in the wrong order (B A) then right click audio A on the timeline and delete it. Click the I< button under the sequence preview pane to move the cursor to the startof the tracks and then select audio A again and place it on the sequence at the cursor position. Audio A will insert and push audio B along the right. You will then have the audio A followed by B.
If your video moves along the timeline with audio B leaving a gap, click the gap and select Close the gap.
Nat