Incorrect Query Results, Could Use Fresh Eyes

I have three tables:

Category: category id, category name, more…
Topic: topic id, topic name, category id, more…
Post: post id, post text, topic id, more…

I need help with a query to display the following:

Category name, # of topics, # of posts

Example:
Category.........................Topics.....Posts
SQL Stored Procedures.........12........562


It’s coming along but there are some problems, ASP.NET actually has 2 posts not 1. And the java totals are correct but it should be Java, 3, 10 (all in one line)
Category.....Topics...Posts
ASP.NET.........2........1
C#................1........1
Java..............1........1
Java..............1........2
Java..............1........7


Overview: use category id to get count of topics then use the topic id to get the count of posts.


SELECT C.CategoryName, T.ThreadCount AS Threads, T.PostCount AS Posts
FROM Category AS C LEFT OUTER JOIN
(SELECT tt.CategoryID, PostID.PostCount, COUNT(tt.ThreadName) AS ThreadCount
FROM Thread AS tt LEFT OUTER JOIN
(SELECT ThreadID, COUNT(PostID) AS PostCount
FROM Post AS P
GROUP BY ThreadID) AS PostID
ON tt.ThreadID = PostID.ThreadID
GROUP BY tt.CategoryID, PostID.PostCount) AS T
ON C.CategoryID = T.CategoryID
WHERE (C.CategoryID = T.CategoryID)
GROUP BY C.CategoryName, T.ThreadCount, T.PostCount
ORDER BY C.CategoryName

Thanks in advance