Here are some links to help you with the past perfect:

• Azar Grammar PowerPoint on Past Tense
• Azar Grammar talking head explains the past perfect
• EnglishTensesWithCartoons (Be careful...there are ads that you can click on by mistake)
• BBC Grammar Challenge- Using "wish" with the past perfect
• BBC Grammar Challenge- Pronouncing the past perfect
• SimplePast.com- Past Perfect Chart and links