Hi, Carl —
We have a whole section dedicated to questions on Purgatory and indulgences. There are currently two pages of questions. You can move from Catholic topic to Catholic topic by using the left navigator bar.
Also, try using our knowledge base to search for an answer next time; it is a resource to quickly find, most if not all, the answers any one may have on Church teachings.
Here are some web postings I picked out that should answer most of your questions:
Hope this helps,