Tina, there are a lot of posts on the board about crawl spaces and drainage. From the old board page, hit "Control F", type in "crawl space" (in quotes) and click as per instructions. When you have read one thread, go back and click for the next one on the subject. Then do the same for drains and again for drainage.
This will tell you a lot but a quick answer is that your inspector sounds like he is right on track and you need to do something about the drainage around your house. The info on the board should tell you what to do but if you still have specific questions, post again.