Aboard the Vogon Ship

1. This puzzle has more clues than a Hitchhiker's Guide Mark IV has options.
2. Have you tried pressing the dispenser button?
3. You need to block the small hole.
4. Let's hope you aren't stuck here, because it only gets harder.
5. It has something to do with the hook above the hole.
6. You need to hang something on the hook.
7. Examine the gown.